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causes | What causes 47, XYY syndrome ? | What causes 47, XYY syndrome? 47,XYY syndrome is caused by the presence of an extra copy of the Y chromosome in each of a male's cells. This is typically due to a random event during the formation of a sperm cell in the father, usually before conception (fertilization of the egg). In this case, the father's two Y chromosomes do not separate when sperm cells are being made. If two Y chromosomes are present in a sperm that fertilizes an egg (with an X chromosome), the resulting embryo will be a male with an extra Y chromosome. It is also possible that a similar random event could occur very early in an embryo's development. It is not fully understood why an extra copy of the Y chromosome leads to an increased risk for the features associated with 47, XYY syndrome in some males. Importantly, there is nothing either parent can do (or not do) to cause or prevent 47, XYY syndrome. |
symptoms | What are the symptoms of Meckel syndrome type 3 ? | What are the signs and symptoms of Meckel syndrome type 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Meckel syndrome type 3. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Cleft palate 5% Dandy-Walker malformation 5% Hydrocephalus 5% Autosomal recessive inheritance - Bile duct proliferation - Encephalocele - Hepatic fibrosis - Multicystic kidney dysplasia - Polydactyly - Postaxial hand polydactyly - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
treatment | What are the treatments for Joubert Syndrome ? | Treatment for Joubert syndrome is symptomatic and supportive. Infant stimulation and physical, occupational, and speech therapy may benefit some children. Infants with abnormal breathing patterns should be monitored. Screening for progressive eye, liver, and kidney complications associated with Joubert-related disorders should be performed on a regular basis. |
inheritance | Is short-chain acyl-CoA dehydrogenase deficiency inherited ? | This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition. |
information | What is (are) Mycetoma ? | Mycetoma is a chronic infection that is caused by fungi or actinomycetes (bacteria that produce filaments, like fungi). The first symptom of the condition is generally painless swelling beneath the skin, which progresses to a nodule (lump) over several years. Eventually, affected people experience massive swelling and hardening of the affected area; skin rupture; and formation of sinus tracts (holes) that discharge pus and grains filled with organisms. Some affected people have no discomfort while others report itching and/or pain. Mycetoma is rare in the United States, but is commonly diagnosed in Africa, Mexico and India. In these countries, it occurs most frequently in farmers, shepherds, and people living in rural areas. Frequent exposure to penetrating wounds by thorns or splinters is a risk factor. Treatment varies based on the cause of the condition and may include antibiotics or antifungal medications. |
treatment | What are the treatments for Acquired pure red cell aplasia ? | How might acquired pure red cell aplasia be treated? The main goals of treatment for pure red cell aplasia (PRCA) are to restore the production of red blood cells, maintain adequate hemoglobin levels, and treat underlying disorders that may be causing the condition. The initial treatment plan typically includes blood transfusions for individuals who are severely anemic and have cardiorespiratory failure. PRCA due to medication or infections is usually reversible within a few months. Therefore, medications that may be causing the condition should be discontinued, and infections that may cause the condition should be treated. Underlying conditions that may cause PRCA such as a thymoma, hematological cancers, solid tumors, and systemic lupus erythematosus (SLE) should be treated as necessary as well. When the condition is idiopathic (of unknown cause) or due to an autoimmune disorder, PRCA is typically initially treated with corticosteroids. It has been reported that individuals who seem to be resistant to treatment may respond to a single course of intravenous immunoglobulin (IVIG,) while others have responded to a single dose. In the United States, financial issues may make it difficult to obtain this treatment because IVIG is expensive and is not approved by the Food and Drug Administration to treat PRCA. Additional and more detailed information about the management of acquired PRCA may be found on eMedicine's web site and can be viewed by clicking here. |
information | What is (are) Leydig cell hypoplasia ? | Leydig cell hypoplasia is a condition that affects male sexual development. It is characterized by underdevelopment (hypoplasia) of Leydig cells in the testes. Leydig cells secrete male sex hormones (androgens) that are important for normal male sexual development before birth and during puberty. In Leydig cell hypoplasia, affected individuals with a typical male chromosomal pattern (46,XY) may have a range of genital abnormalities. Affected males may have a small penis (micropenis), the opening of the urethra on the underside of the penis (hypospadias), or a scrotum divided into two lobes (bifid scrotum). Because of these abnormalities, the external genitalia may not look clearly male or clearly female (ambiguous genitalia). In more severe cases of Leydig cell hypoplasia, people with a typical male chromosomal pattern (46,XY) have female external genitalia. They have small testes that are undescended, which means they are abnormally located in the pelvis, abdomen, or groin. People with this form of the disorder do not develop secondary sex characteristics, such as increased body hair, at puberty. Some researchers refer to this form of Leydig cell hypoplasia as type 1 and designate less severe cases as type 2. |
frequency | How many people are affected by long-chain 3-hydroxyacyl-CoA dehydrogenase deficiency ? | The incidence of LCHAD deficiency is unknown. One estimate, based on a Finnish population, indicates that 1 in 62,000 pregnancies is affected by this disorder. In the United States, the incidence is probably much lower. |
treatment | What are the treatments for Non-Small Cell Lung Cancer ? | Key Points
- There are different types of treatment for patients with non-small cell lung cancer. - Nine types of standard treatment are used: - Surgery - Radiation therapy - Chemotherapy - Targeted therapy - Laser therapy - Photodynamic therapy (PDT) - Cryosurgery - Electrocautery - Watchful waiting - New types of treatment are being tested in clinical trials. - Chemoprevention - Radiosensitizers - New combinations - Patients may want to think about taking part in a clinical trial. - Patients can enter clinical trials before, during, or after starting their cancer treatment. - Follow-up tests may be needed.
There are different types of treatment for patients with non-small cell lung cancer.
Different types of treatments are available for patients with non-small cell lung cancer. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment. Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.
Nine types of standard treatment are used:
Surgery Four types of surgery are used to treat lung cancer: - Wedge resection: Surgery to remove a tumor and some of the normal tissue around it. When a slightly larger amount of tissue is taken, it is called a segmental resection. - Lobectomy: Surgery to remove a whole lobe (section) of the lung. - Pneumonectomy: Surgery to remove one whole lung. - Sleeve resection: Surgery to remove part of the bronchus. Even if the doctor removes all the cancer that can be seen at the time of the surgery, some patients may be given chemotherapy or radiation therapy after surgery to kill any cancer cells that are left. Treatment given after the surgery, to lower the risk that the cancer will come back, is called adjuvant therapy. Radiation therapy Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy: - External radiation therapy uses a machine outside the body to send radiation toward the cancer. - Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. Stereotactic body radiation therapy is a type of external radiation therapy. Special equipment is used to place the patient in the same position for each radiation treatment. Once a day for several days, a radiation machine aims a larger than usual dose of radiation directly at the tumor. By having the patient in the same position for each treatment, there is less damage to nearby healthy tissue. This procedure is also called stereotactic external-beam radiation therapy and stereotaxic radiation therapy. Stereotactic radiosurgery is a type of external radiation therapy used to treat lung cancer that has spread to the brain. A rigid head frame is attached to the skull to keep the head still during the radiation treatment. A machine aims a single large dose of radiation directly at the tumor in the brain. This procedure does not involve surgery. It is also called stereotaxic radiosurgery, radiosurgery, and radiation surgery. For tumors in the airways, radiation is given directly to the tumor through an endoscope. The way the radiation therapy is given depends on the type and stage of the cancer being treated. It also depends on where the cancer is found. External and internal radiation therapy are used to treat non-small cell lung cancer. Chemotherapy Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy). When chemotherapy is placed directly into the cerebrospinal fluid, an organ, or a body cavity such as the abdomen, the drugs mainly affect cancer cells in those areas (regional chemotherapy). The way the chemotherapy is given depends on the type and stage of the cancer being treated. See Drugs Approved for Non-Small Cell Lung Cancer for more information. Targeted therapy Targeted therapy is a type of treatment that uses drugs or other substances to attack specific cancer cells. Targeted therapies usually cause less harm to normal cells than chemotherapy or radiation therapy do. Monoclonal antibodies and tyrosine kinase inhibitors are the two main types of targeted therapy being used to treat advanced, metastatic, or recurrent non-small cell lung cancer. Monoclonal antibodies Monoclonal antibody therapy is a cancer treatment that uses antibodies made in the laboratory from a single type of immune system cell. These antibodies can identify substances on cancer cells or normal substances in the blood or tissues that may help cancer cells grow. The antibodies attach to the substances and kill the cancer cells, block their growth, or keep them from spreading. Monoclonal antibodies are given by infusion. They may be used alone or to carry drugs, toxins, or radioactive material directly to cancer cells. There are different types of monoclonal antibody therapy: - Vascular endothelial growth factor (VEGF) inhibitor therapy: Cancer cells make a substance called VEGF, which causes new blood vessels to form (angiogenesis) and helps the cancer grow. VEGF inhibitors block VEGF and stop new blood vessels from forming. This may kill cancer cells because they need new blood vessels to grow. Bevacizumab and ramucirumab are VEGF inhibitors and angiogenesis inhibitors. - Epidermal growth factor receptor (EGFR) inhibitor therapy: EGFRs are proteins found on the surface of certain cells, including cancer cells. Epidermal growth factor attaches to the EGFR on the surface of the cell and causes the cells to grow and divide. EGFR inhibitors block the receptor and stop the epidermal growth factor from attaching to the cancer cell. This stops the cancer cell from growing and dividing. Cetuximab and necitumumab are EGFR inhibitors. - Immune checkpoint inhibitor therapy: PD-1 is a protein on the surface of T cells that helps keep the bodys immune responses in check. When PD-1 attaches to another protein called PDL-1 on a cancer cell, it stops the T cell from killing the cancer cell. PD-1 inhibitors attach to PDL-1 and allow the T cells to kill cancer cells. Nivolumab, pembrolizumab, and atezolizumab are types of immune checkpoint inhibitors. Tyrosine kinase inhibitors Tyrosine kinase inhibitors are small-molecule drugs that go through the cell membrane and work inside cancer cells to block signals that cancer cells need to grow and divide. Some tyrosine kinase inhibitors also have angiogenesis inhibitor effects. There are different types of tyrosine kinase inhibitors: - Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors: EGFRs are proteins found on the surface and inside certain cells, including cancer cells. Epidermal growth factor attaches to the EGFR inside the cell and sends signals to the tyrosine kinase area of the cell, which tells the cell to grow and divide. EGFR tyrosine kinase inhibitors stop these signals and stop the cancer cell from growing and dividing. Erlotinib, gefitinib, and afatinib are types of EGFR tyrosine kinase inhibitors. Some of these drugs work better when there is also a mutation (change) in the EGFR gene. - Kinase inhibitors that affect cells with certain gene changes: Certain changes in the ALK and ROS1 genes cause too much protein to be made. Blocking these proteins may stop the cancer from growing and spreading. Crizotinib is used to stop proteins from being made by the ALK and ROS1 gene. Ceritinib is used to stop proteins from being made by the ALK gene. See Drugs Approved for Non-Small Cell Lung Cancer for more information. Laser therapy Laser therapy is a cancer treatment that uses a laser beam (a narrow beam of intense light) to kill cancer cells. Photodynamic therapy (PDT) Photodynamic therapy (PDT) is a cancer treatment that uses a drug and a certain type of laser light to kill cancer cells. A drug that is not active until it is exposed to light is injected into a vein. The drug collects more in cancer cells than in normal cells. Fiberoptic tubes are then used to carry the laser light to the cancer cells, where the drug becomes active and kills the cells. Photodynamic therapy causes little damage to healthy tissue. It is used mainly to treat tumors on or just under the skin or in the lining of internal organs. When the tumor is in the airways, PDT is given directly to the tumor through an endoscope. Cryosurgery Cryosurgery is a treatment that uses an instrument to freeze and destroy abnormal tissue, such as carcinoma in situ. This type of treatment is also called cryotherapy. For tumors in the airways, cryosurgery is done through an endoscope. Electrocautery Electrocautery is a treatment that uses a probe or needle heated by an electric current to destroy abnormal tissue. For tumors in the airways, electrocautery is done through an endoscope. Watchful waiting Watchful waiting is closely monitoring a patients condition without giving any treatment until signs or symptoms appear or change. This may be done in certain rare cases of non-small cell lung cancer.
New types of treatment are being tested in clinical trials.
This summary section describes treatments that are being studied in clinical trials. It may not mention every new treatment being studied. Information about clinical trials is available from the NCI website. Chemoprevention Chemoprevention is the use of drugs, vitamins, or other substances to reduce the risk of cancer or to reduce the risk cancer will recur (come back). For lung cancer, chemoprevention is used to lessen the chance that a new tumor will form in the lung. Radiosensitizers Radiosensitizers are substances that make tumor cells easier to kill with radiation therapy. The combination of chemotherapy and radiation therapy given with a radiosensitizer is being studied in the treatment of non-small cell lung cancer. New combinations New combinations of treatments are being studied in clinical trials.
Patients may want to think about taking part in a clinical trial.
For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment. Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment. Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
Patients can enter clinical trials before, during, or after starting their cancer treatment.
Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment. Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials.
Follow-up tests may be needed.
Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests. Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.
Treatment Options by Stage
Occult Non-Small Cell Lung Cancer
Treatment of occult non-small cell lung cancer depends on the stage of the disease. Occult tumors are often found at an early stage (the tumor is in the lung only) and sometimes can be cured by surgery. Check the list of NCI-supported cancer clinical trials that are now accepting patients with occult non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage 0 (Carcinoma in Situ)
Treatment of stage 0 may include the following: - Surgery (wedge resection or segmental resection). - Photodynamic therapy for tumors in or near the bronchus. - Electrocautery, cryosurgery, or laser surgery for tumors in or near the bronchus. Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage 0 non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage I Non-Small Cell Lung Cancer
Treatment of stage I non-small cell lung cancer may include the following: - Surgery (wedge resection, segmental resection, sleeve resection, or lobectomy). - External radiation therapy, including stereotactic body radiation therapy for patients who cannot have surgery or choose not to have surgery. - A clinical trial of chemotherapy or radiation therapy following surgery. - A clinical trial of treatment given through an endoscope, such as photodynamic therapy (PDT). - A clinical trial of surgery followed by chemoprevention. Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage I non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage II Non-Small Cell Lung Cancer
Treatment of stage II non-small cell lung cancer may include the following: - Surgery (wedge resection, segmental resection, sleeve resection, lobectomy, or pneumonectomy). - Chemotherapy followed by surgery. - Surgery followed by chemotherapy. - External radiation therapy for patients who cannot have surgery. - A clinical trial of radiation therapy following surgery. Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage II non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage IIIA Non-Small Cell Lung Cancer
Treatment of stage IIIA non-small cell lung cancer that can be removed with surgery may include the following: - Surgery followed by chemotherapy. - Surgery followed by radiation therapy. - Chemotherapy followed by surgery. - Surgery followed by chemotherapy combined with radiation therapy. - Chemotherapy and radiation therapy followed by surgery. - A clinical trial of new combinations of treatments. Treatment of stage IIIA non-small cell lung cancer that cannot be removed with surgery may include the following: - Chemotherapy and radiation therapy given over the same period of time or one followed by the other. - External radiation therapy alone for patients who cannot be treated with combined therapy, or as palliative treatment to relieve symptoms and improve the quality of life. - Internal radiation therapy or laser surgery, as palliative treatment to relieve symptoms and improve the quality of life. - A clinical trial of new combinations of treatments. For more information about supportive care for signs and symptoms including cough, shortness of breath, and chest pain, see the PDQ summary on Cardiopulmonary Syndromes. Non-small cell lung cancer of the superior sulcus, often called Pancoast tumor, begins in the upper part of the lung and spreads to nearby tissues such as the chest wall, large blood vessels, and spine. Treatment of Pancoast tumors may include the following: - Radiation therapy alone. - Radiation therapy followed by surgery. - Chemotherapy and radiation therapy given as separate treatments over the same period of time. Surgery may also be done after chemotherapy and radiation therapy. - Surgery alone. - A clinical trial of new combinations of treatments. Some stage IIIA non-small cell lung tumors that have grown into the chest wall may be completely removed. Treatment of chest wall tumors may include the following: - Surgery. - Surgery and radiation therapy. - Radiation therapy alone. - Chemotherapy combined with radiation therapy and/or surgery. - A clinical trial of new combinations of treatments. Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage III non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage IIIB Non-Small Cell Lung Cancer
Treatment of stage IIIB non-small cell lung cancer may include the following: - Chemotherapy followed by external radiation therapy. - Chemotherapy and radiation therapy given as separate treatments over the same period of time. - Chemotherapy followed by surgery. - External radiation therapy alone for patients who cannot be treated with chemotherapy. - External radiation therapy as palliative therapy, to relieve symptoms and improve the quality of life. - Laser therapy and/or internal radiation therapy to relieve symptoms and improve the quality of life. - Clinical trials of new external radiation therapy schedules and new types of treatment. - A clinical trial of chemotherapy and radiation therapy combined with a radiosensitizer. - Clinical trials of targeted therapy combined with chemotherapy and radiation therapy. For more information about supportive care for signs and symptoms such as cough, shortness of breath, and chest pain, see the following PDQ summaries: - Cardiopulmonary Syndromes - Cancer Pain Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage III non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website.
Stage IV Non-Small Cell Lung Cancer
Treatment of stage IV non-small cell lung cancer may include the following: - Chemotherapy. - Chemotherapy followed by more chemotherapy as maintenance therapy to help keep cancer from progressing. - Combination chemotherapy and targeted therapy with a monoclonal antibody, such as bevacizumab, cetuximab, or necitumumab. - Targeted therapy with a monoclonal antibody, such as nivolumab, pembrolizumab, or atezolizumab. - Targeted therapy with a tyrosine kinase inhibitor, such as erlotinib, gefitinib, afatinib, crizotinib, or ceritinib. - External radiation therapy as palliative therapy, to relieve symptoms and improve the quality of life. - Laser therapy and/or internal radiation therapy for tumors that are blocking the airways. - A clinical trial of new drugs and combinations of treatments. For more information about supportive care for signs and symptoms including cough, shortness of breath, and chest pain, see the following PDQ summaries: - Cardiopulmonary Syndromes - Cancer Pain - Last Days of Life Check the list of NCI-supported cancer clinical trials that are now accepting patients with stage IV non-small cell lung cancer. For more specific results, refine the search by using other search features, such as the location of the trial, the type of treatment, or the name of the drug. Talk with your doctor about clinical trials that may be right for you. General information about clinical trials is available from the NCI website. |
frequency | How many people are affected by spastic paraplegia type 15 ? | Spastic paraplegia type 15 is a rare condition, although its exact prevalence is unknown. |
symptoms | What are the symptoms of Moebius syndrome ? | What are the signs and symptoms of Moebius syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Moebius syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the voice 90% Mask-like facies 90% Open mouth 90% Ophthalmoparesis 90% Ptosis 90% Strabismus 90% Delayed speech and language development 55% Aplasia of the pectoralis major muscle 50% Brachydactyly syndrome 50% Feeding difficulties in infancy 50% Muscular hypotonia 50% Opacification of the corneal stroma 50% Talipes 50% Hypertelorism 25% Bifid uvula 11% Abnormality of the sense of smell 7.5% Abnormality of the ulna 7.5% Absent hand 7.5% Aplasia/Hypoplasia of the radius 7.5% Aplasia/Hypoplasia of the thumb 7.5% Aplasia/Hypoplasia of the tongue 7.5% Autism 7.5% Blepharitis 7.5% Breast aplasia 7.5% Cafe-au-lait spot 7.5% Cleft palate 7.5% Clinodactyly of the 5th finger 7.5% Epicanthus 7.5% Finger syndactyly 7.5% Hearing impairment 7.5% Microdontia 7.5% Reduced number of teeth 7.5% Skeletal muscle atrophy 7.5% Visual impairment 7.5% Abnormality of pelvic girdle bone morphology - Abnormality of the nail - Abnormality of the nasopharynx - Abnormality of the pinna - Abnormality of the posterior cranial fossa - Aplasia/Hypoplasia involving the metacarpal bones - Autosomal dominant inheritance - Camptodactyly - Clinodactyly - Clumsiness - Congenital fibrosis of extraocular muscles - Decreased testicular size - Depressed nasal bridge - Dysarthria - Dysdiadochokinesis - Dysphagia - Esotropia - Exotropia - Facial diplegia - Gait disturbance - High palate - Hypogonadotrophic hypogonadism - Hypoplasia of the brainstem - Infantile muscular hypotonia - Intellectual disability, mild - Lower limb undergrowth - Micropenis - Microphthalmia - Motor delay - Pes planus - Phenotypic variability - Poor coordination - Radial deviation of finger - Respiratory difficulties - Short neck - Short phalanx of finger - Split hand - Sporadic - Syndactyly - Talipes equinovarus - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
frequency | How many people are affected by adenosine monophosphate deaminase deficiency ? | AMP deaminase deficiency is one of the most common inherited muscle disorders in white populations, affecting 1 in 50 to 100 people. The prevalence is lower in African Americans, affecting an estimated 1 in 40,000 people, and the condition is even less common in the Japanese population. |
frequency | How many people are affected by spina bifida ? | Spina bifida is one of the most common types of neural tube defect, affecting an estimated 1 in 2,500 newborns worldwide. For unknown reasons, the prevalence of spina bifida varies among different geographic regions and ethnic groups. In the United States, this condition occurs more frequently in Hispanics and non-Hispanic whites than in African Americans. |
exams and tests | How to diagnose Abetalipoproteinemia ? | Is genetic testing available for abetalipoproteinemia? Yes. The Genetic Testing Registry (GTR) provides information about the genetic tests available for abetalipoproteinemia. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional. Prenatal testing may also be available for pregnancies at increased risk if the mutations in the family have been identified. |
causes | What causes Down syndrome ? | What causes Down syndrome? There are 3 possible genetic causes of Down syndrome: Trisomy 21. Most often, Down syndrome is caused by an extra chromosome 21 in all cells of the affected person. In these cases, the chromosome 21 pair fails to separate during the formation of an egg (or sperm); this is called "nondisjunction." When the egg with 2 copies of chromosome 21 unites with a normal sperm with one copy of chromosome 21 to form an embryo, the resulting embryo has 3 copies of chromosome 21 instead of the normal two. The extra chromosome is then copied in every cell of the baby's body, causing the features of Down syndrome. The cause of nondisjunction is unknown, but research has shown that it happens more often as women age. Nondisjunction is not known to be caused by anything in the environment or anything that parents do (or don't do) before or during pregnancy. Mosaic trisomy 21. In about 1-2% of cases, only some of the cells in a person's body have an extra chromosome 21; this is called "mosaic trisomy 21". In this situation, the fertilized egg may have the right number of chromosomes, but due to a cell division error early in the development of the embryo, some cells "acquire" an extra chromosome 21. A person with mosaic trisomy 21 typically has 46 chromosomes in some cells, and 47 chromosomes (with the extra chromosome 21) in others. The features and severity in people with mosaic trisomy 21 may vary widely. Translocation trisomy 21. About 3-4% of people with Down syndrome have cells that contain 46 chromosomes; however, there is extra chromosome 21 material attached (translocated ) onto another chromosome. For parents of a child with Down syndrome due to a translocation, there may be an increased chance of Down syndrome in future pregnancies. This is because one of the two parents may be a carrier of a balanced translocation. However, not all parents of people with translocation trisomy 21 have a translocation. Regardless of the type of Down syndrome a person has, all people with Down syndrome have an extra, critical portion of chromosome 21 present in all or some of their cells. This extra genetic material disrupts the normal course of development, causing the characteristic features of Down syndrome. |
symptoms | What are the symptoms of Methylmalonic acidemia with homocystinuria, type cblJ ? | What are the signs and symptoms of Methylmalonic acidemia with homocystinuria, type cblJ? The Human Phenotype Ontology provides the following list of signs and symptoms for Methylmalonic acidemia with homocystinuria, type cblJ. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Atria septal defect 5% Cerebral atrophy 5% Coarctation of aorta 5% Cryptorchidism 5% Decreased methionine synthase activity 5% Decreased methylcobalamin 5% Gastroesophageal reflux 5% Hypertelorism 5% Pulmonary hypertension 5% Wide intermamillary distance 5% Abnormal posturing - Anemia - Autosomal recessive inheritance - Congenital onset - Decreased adenosylcobalamin - Feeding difficulties - Growth delay - Homocystinuria - Hyperhomocystinemia - Inguinal hernia - Lethargy - Methylmalonic acidemia - Methylmalonic aciduria - Muscular hypotonia - Neutropenia - Tachypnea - Thrombocytopenia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) ophthalmo-acromelic syndrome ? | Ophthalmo-acromelic syndrome is a condition that results in malformations of the eyes, hands, and feet. The features of this condition are present from birth. The eyes are often absent or severely underdeveloped (anophthalmia), or they may be abnormally small (microphthalmia). Usually both eyes are similarly affected in this condition, but if only one eye is small or missing, the other eye may have a defect such as a gap or split in its structures (coloboma). The most common hand and foot malformation seen in ophthalmo-acromelic syndrome is missing fingers or toes (oligodactyly). Other frequent malformations include fingers or toes that are fused together (syndactyly) or extra fingers or toes (polydactyly). These skeletal malformations are often described as acromelic, meaning that they occur in the bones that are away from the center of the body. Additional skeletal abnormalities involving the long bones of the arms and legs or the spinal bones (vertebrae) can also occur. Affected individuals may have distinctive facial features, an opening in the lip (cleft lip) with or without an opening in the roof of the mouth (cleft palate), or intellectual disability. |
treatment | What are the treatments for Meige disease ? | These resources address the diagnosis or management of Meige disease: - Genetic Testing Registry: Lymphedema praecox - Johns Hopkins Medicine: Lymphedema Management These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
genetic changes | What are the genetic changes related to Andersen-Tawil syndrome ? | Mutations in the KCNJ2 gene cause Andersen-Tawil syndrome. The KCNJ2 gene provides instructions for making a protein that forms a channel across cell membranes. This channel transports positively charged atoms (ions) of potassium into muscle cells. The movement of potassium ions through these channels is critical for maintaining the normal functions of muscles used for movement (skeletal muscles) and cardiac muscle. Mutations in the KCNJ2 gene alter the usual structure and function of potassium channels or prevent the channels from being inserted correctly into the cell membrane. Many mutations prevent a molecule called PIP2 from binding to the channels and effectively regulating their activity. These changes disrupt the flow of potassium ions in skeletal and cardiac muscle, leading to the periodic paralysis and irregular heart rhythm characteristic of Andersen-Tawil syndrome. Researchers have not determined the role of the KCNJ2 gene in bone development, and it is not known how mutations in the gene lead to the developmental abnormalities often found in Andersen-Tawil syndrome. |
inheritance | Is Proteus syndrome inherited ? | Because Proteus syndrome is caused by AKT1 gene mutations that occur during early development, the disorder is not inherited and does not run in families. |
outlook | What is the outlook for Olivopontocerebellar Atrophy ? | There is no cure for OPCA. The disorder is slowly progressive with death usually occurring approximately 20 years after onset. |
information | What is (are) Tumor necrosis factor receptor-associated periodic syndrome ? | Tumor necrosis factor receptor-associated periodic syndrome (TRAPS) is an inherited condition characterized by recurrent episodes of fever. Episodes can begin at any age but most often begin in early childhood. Fevers typically last about 3 weeks but can last from a few days to a few months. The amount of time between episodes may vary from weeks to years. Episodes usually occur spontaneously, but are sometimes brought on by a variety of triggers (such as injury, infection, or stress). Symptoms during fever episodes may include abdominal, muscle or joint pains; skin rashes (usually on the limbs); puffiness around the eyes; and inflammation in various areas of the body. Some people develop amyloidosis. TRAPS is caused by mutations in the TNFRSF1A gene and is inherited in an autosomal dominant manner. Treatment may include systemic corticosteroids at the beginning of an episode to reduce its severity and duration. |
genetic changes | What are the genetic changes related to spinocerebellar ataxia type 36 ? | SCA36 is caused by mutations in the NOP56 gene. The NOP56 gene provides instructions for making a protein called nucleolar protein 56, which is primarily found in the nucleus of nerve cells (neurons), particularly those in the cerebellum. This protein is one part (subunit) of the ribonucleoprotein complex, which is composed of proteins and molecules of RNA, DNA's chemical cousin. The ribonucleoprotein complex is needed to make cellular structures called ribosomes, which process the cell's genetic instructions to create proteins. The NOP56 gene mutations that cause SCA36 involve a string of six DNA building blocks (nucleotides) located in an area of the gene known as intron 1. This string of six nucleotides (known as a hexanucleotide) is represented by the letters GGCCTG and normally appears multiple times in a row. In healthy individuals, GGCCTG is repeated 3 to 14 times within the gene. In people with SCA36, GGCCTG is repeated at least 650 times. It is unclear if 15 to 649 repeats of this hexanucleotide cause any signs or symptoms. To make proteins from the genetic instructions carried in genes, a molecule called messenger RNA (mRNA) is formed. This molecule acts as a genetic blueprint for protein production. However, a large increase in the number of GGCCTG repeats in the NOP56 gene disrupts the normal structure of NOP56 mRNA. Abnormal NOP56 mRNA molecules form clumps called RNA foci within the nucleus of neurons. Other proteins become trapped in the RNA foci, where they cannot function. These proteins may be important for controlling gene activity or protein production. Additionally, researchers believe that the large expansion of the hexanucleotide repeat in the NOP56 gene may reduce the activity of a nearby gene called MIR1292. The MIR1292 gene provides instructions for making a type of RNA that regulates the activity (expression) of genes that produce proteins called glutamate receptors. These proteins are found on the surface of neurons and allow these cells to communicate with one another. A decrease in the production of Mir1292 RNA can lead to an increase in the production of glutamate receptors. The increased receptor activity may overexcite neurons, which disrupts normal communication between cells and can contribute to ataxia. The combination of RNA foci and overly excited neurons likely leads to the death of these cells over time. Because the NOP56 gene is especially active in neurons in the cerebellum, these cells are particularly affected by expansion of the gene, leading to cerebellar atrophy. Deterioration in this part of the brain leads to ataxia and the other signs and symptoms of SCA36. |
treatment | What are the treatments for Senior-Lken syndrome ? | These resources address the diagnosis or management of Senior-Lken syndrome: - Genetic Testing Registry: Senior-Loken syndrome 1 - Genetic Testing Registry: Senior-Loken syndrome 3 - Genetic Testing Registry: Senior-Loken syndrome 4 - Genetic Testing Registry: Senior-Loken syndrome 5 - Genetic Testing Registry: Senior-Loken syndrome 6 - Genetic Testing Registry: Senior-Loken syndrome 7 These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
causes | What causes X-linked dominant scapuloperoneal myopathy ? | What causes X-linked dominant scapuloperoneal myopathy? X-linked dominant scapuloperoneal myopathy is caused by mutations in the FHL1 gene. The FHL1 gene is located on chromosome Xq26. This gene may be involved in muscle development or hypertrophy. |
frequency | How many people are affected by familial Mediterranean fever ? | Familial Mediterranean fever primarily affects populations originating in the Mediterranean region, particularly people of Armenian, Arab, Turkish, or Jewish ancestry. The disorder affects 1 in 200 to 1,000 people in these populations. It is less common in other populations. |
frequency | How many people are affected by aminoacylase 1 deficiency ? | The prevalence of aminoacylase 1 deficiency is unknown. |
causes | What causes Prescription and Illicit Drug Abuse ? | Medications affect older people differently than younger people because aging changes how the body and brain handle these substances. As we age, our bodies change and cannot break down and get rid of substances as easily as before. This means that even a small amount of a medicine or a drug can have a strong effect. If you take medications the wrong way or abuse illicit drugs, this can have a serious effect on your health and make existing health problems worse. As people age, they may also become more sensitive to alcohols effects. For more information on the dangers of mixing alcohol and medicines, see Alcohol Use and Older Adults." |
treatment | What are the treatments for Febrile Ulceronecrotic Mucha-Habermann disease ? | How is febrile ulceronecrotic Mucha-Habermann disease (FUMHD) treated? It is important that FUMHD is diagnosed and treated as soon as possible. While a number of treatments have been tried, it is hard to asses the benefit of the therapies because there are so few cases of FUMHD and among reported cases the treatment approach may vary. The case reports describe treatment with systemic steroids, methotrexate, antibiotics, dapsone, cyclosporine, psoralen and ultraviolet A (PUVA), ultraviolet B (UVB), unspecified ultraviolet receptor, acyclovir, immunoglobulins, and 4,4-diaminodiphenylsulphone (DDS). Again the efficacy of these therapies are not known. Acyclovir was prescribed in cases where varicella was initially suspected. None of these cases turned out to be associated with herpes simplex or varicella-zoster virus infection. The benefit of acyclovir therapy in people with FUMHD is questionable. Systemic steroids have been commonly utilized among reported cases (27 of 40 cases), with only one report of a positive effect. Methotrexate has been used in 15 patients. It induced rapid remissions and was successful in cases that did not respond to other therapies. Still four patients died despite methotrexate theapy. It is possible this was due to its late institution. Debridement and skin grafting was successful in one case, but the patient was left with considerable scaring. In advanced disease, therapy is also aimed at stabilizing the patient. Intensive care treatment of infection and maintenance of the patients general condition is vital. The state of these patients is similar to what is seen in patients with severe burns. Thus, patients with FUMHD may benefit from the same supportive services that burn victims receive. Treatment with tumor necrosis factor (TNF)-alpha inhibitors (such as infliximab and etanercept) has been suggested as a first-line option in the management of FUMHD because elevated levels of serum TNF-alpha have been reported in this disease However, further studies may be required to establish this approach to treatment. More detailed information about treatment options for FUMHD can be accessed through the DermNet NZ web site. |
information | What is (are) Pol III-related leukodystrophy ? | Pol III-related leukodystrophy is a disorder that affects the nervous system and other parts of the body. Leukodystrophies are conditions that involve abnormalities of the nervous system's white matter, which consists of nerve fibers covered by a fatty substance called myelin. Myelin insulates nerve fibers and promotes the rapid transmission of nerve impulses. Pol III-related leukodystrophy is a hypomyelinating disease, which means that the nervous system of affected individuals has a reduced ability to form myelin. Hypomyelination underlies most of the neurological problems associated with Pol III-related leukodystrophy. A small number of people with this disorder also have a loss of nerve cells in a part of the brain involved in coordinating movements (cerebellar atrophy) and underdevelopment (hypoplasia) of tissue that connects the left and right halves of the brain (the corpus callosum). These brain abnormalities likely contribute to the neurological problems in affected individuals. People with Pol III-related leukodystrophy usually have intellectual disability ranging from mild to severe, which gradually worsens over time. Some affected individuals have normal intelligence in early childhood but develop mild intellectual disability during the course of the disease. Difficulty coordinating movements (ataxia), which begins in childhood and slowly worsens over time, is a characteristic feature of Pol III-related leukodystrophy. Affected children typically have delayed development of motor skills such as walking. Their gait is unstable, and they usually walk with their feet wide apart for balance. Affected individuals may eventually need to use a walker or wheelchair. Involuntary rhythmic shaking (tremor) of the arms and hands may occur in this disorder. In some cases the tremor occurs mainly during movement (intentional tremor); other affected individuals experience the tremor both during movement and at rest. Development of the teeth (dentition) is often abnormal in Pol III-related leukodystrophy, resulting in the absence of some teeth (known as hypodontia or oligodontia). Some affected infants are born with a few teeth (natal teeth), which fall out during the first weeks of life. The primary (deciduous) teeth appear later than usual, beginning at about age 2. In Pol III-related leukodystrophy, the teeth may not appear in the usual sequence, in which front teeth (incisors) appear before back teeth (molars). Instead, molars often appear first, with incisors appearing later or not at all. Permanent teeth are also delayed, and may not appear until adolescence. The teeth may also be unusually shaped. Some individuals with Pol III-related leukodystrophy have excessive salivation and difficulty chewing or swallowing (dysphagia), which can lead to choking. They may also have speech impairment (dysarthria). People with Pol III-related leukodystrophy often have abnormalities in eye movement, such as progressive vertical gaze palsy, which is restricted up-and-down eye movement that worsens over time. Nearsightedness is common in affected individuals, and clouding of the lens of the eyes (cataracts) has also been reported. Deterioration (atrophy) of the nerves that carry information from the eyes to the brain (the optic nerves) and seizures may also occur in this disorder. Hypogonadotropic hypogonadism, which is a condition caused by reduced production of hormones that direct sexual development, may occur in Pol III-related leukodystrophy. Affected individuals have delayed development of the typical signs of puberty, such as the growth of body hair. People with Pol III-related leukodystrophy may have different combinations of its signs and symptoms. These varied combinations of clinical features were originally described as separate disorders. Affected individuals may be diagnosed with ataxia, delayed dentition, and hypomyelination (ADDH); hypomyelination, hypodontia, hypogonadotropic hypogonadism (4H syndrome); tremor-ataxia with central hypomyelination (TACH); leukodystrophy with oligodontia (LO); or hypomyelination with cerebellar atrophy and hypoplasia of the corpus callosum (HCAHC). Because these disorders were later found to have the same genetic cause, researchers now group them as variations of the single condition Pol III-related leukodystrophy. |
information | What is (are) Dry Mouth ? | Dry mouth is the feeling that there is not enough saliva in your mouth. Everyone has a dry mouth once in a while - if they are nervous, upset or under stress. But if you have a dry mouth all or most of the time, it can be uncomfortable and can lead to serious health problems. Symptoms of dry mouth include - A sticky, dry feeling in the mouth - Trouble chewing, swallowing, tasting, or speaking - A burning feeling in the mouth - A dry feeling in the throat - Cracked lips - A dry, rough tongue - Mouth sores - An infection in the mouth Dry mouth is not a normal part of aging. Causes include some medicines, radiation therapy, chemotherapy, and nerve damage. Salivary gland diseases, Sjogren's syndrome, HIV/AIDS, and diabetes can also cause dry mouth. Treatment depends on the cause. Things you can do include sipping water, avoiding drinks with caffeine, tobacco, and alcohol, and chewing sugarless gum or sucking on sugarless hard candy. NIH: National Institute of Dental and Craniofacial Research |
treatment | What are the treatments for boomerang dysplasia ? | These resources address the diagnosis or management of boomerang dysplasia: - Gene Review: Gene Review: FLNB-Related Disorders - Genetic Testing Registry: Boomerang dysplasia These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
exams and tests | How to diagnose Breast Cancer ? | Tests that examine the breasts are used to detect (find) and diagnose breast cancer.
Check with your doctor if you notice any changes in your breasts. The following tests and procedures may be used: - Physical exam and history : An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patients health habits and past illnesses and treatments will also be taken. - Clinical breast exam (CBE): An exam of the breast by a doctor or other health professional. The doctor will carefully feel the breasts and under the arms for lumps or anything else that seems unusual. - Mammogram: An x-ray of the breast. - Ultrasound exam: A procedure in which high-energy sound waves (ultrasound) are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissues called a sonogram. The picture can be printed to be looked at later. - MRI (magnetic resonance imaging): A procedure that uses a magnet, radio waves, and a computer to make a series of detailed pictures of both breasts. This procedure is also called nuclear magnetic resonance imaging (NMRI). - Blood chemistry studies : A procedure in which a blood sample is checked to measure the amounts of certain substances released into the blood by organs and tissues in the body. An unusual (higher or lower than normal) amount of a substance can be a sign of disease. - Biopsy : The removal of cells or tissues so they can be viewed under a microscope by a pathologist to check for signs of cancer. If a lump in the breast is found, a biopsy may be done. There are four types of biopsy used to check for breast cancer: - Excisional biopsy : The removal of an entire lump of tissue. - Incisional biopsy : The removal of part of a lump or a sample of tissue. - Core biopsy : The removal of tissue using a wide needle. - Fine-needle aspiration (FNA) biopsy : The removal of tissue or fluid, using a thin needle.
If cancer is found, tests are done to study the cancer cells.
Decisions about the best treatment are based on the results of these tests. The tests give information about: - how quickly the cancer may grow. - how likely it is that the cancer will spread through the body. - how well certain treatments might work. - how likely the cancer is to recur (come back). Tests include the following: - Estrogen and progesterone receptor test : A test to measure the amount of estrogen and progesterone (hormones) receptors in cancer tissue. If there are more estrogen and progesterone receptors than normal, the cancer is called estrogen and/or progesterone receptor positive. This type of breast cancer may grow more quickly. The test results show whether treatment to block estrogen and progesterone may stop the cancer from growing. - Human epidermal growth factor type 2 receptor (HER2/neu) test : A laboratory test to measure how many HER2/neu genes there are and how much HER2/neu protein is made in a sample of tissue. If there are more HER2/neu genes or higher levels of HER2/neu protein than normal, the cancer is called HER2/neu positive. This type of breast cancer may grow more quickly and is more likely to spread to other parts of the body. The cancer may be treated with drugs that target the HER2/neu protein, such as trastuzumab and pertuzumab. - Multigene tests: Tests in which samples of tissue are studied to look at the activity of many genes at the same time. These tests may help predict whether cancer will spread to other parts of the body or recur (come back). There are many types of multigene tests. The following multigene tests have been studied in clinical trials: - Oncotype DX : This test helps predict whether stage I or stage II breast cancer that is estrogen receptor positive and node negative will spread to other parts of the body. If the risk that the cancer will spread is high, chemotherapy may be given to lower the risk. - MammaPrint : This test helps predict whether stage I or stage II breast cancer that is node negative will spread to other parts of the body. If the risk that the cancer will spread is high, chemotherapy may be given to lower the risk. Based on these tests, breast cancer is described as one of the following types: - Hormone receptor positive (estrogen and/or progesterone receptor positive) or hormone receptor negative (estrogen and/or progesterone receptor negative). - HER2/neu positive or HER2/neu negative. - Triple negative (estrogen receptor, progesterone receptor, and HER2/neu negative). This information helps the doctor decide which treatments will work best for your cancer. |
treatment | What are the treatments for spinocerebellar ataxia type 6 ? | These resources address the diagnosis or management of SCA6: - Gene Review: Gene Review: Spinocerebellar Ataxia Type 6 - Genetic Testing Registry: Spinocerebellar ataxia 6 These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
symptoms | What are the symptoms of Renal tubular acidosis, distal, autosomal dominant ? | What are the signs and symptoms of Renal tubular acidosis, distal, autosomal dominant? The Human Phenotype Ontology provides the following list of signs and symptoms for Renal tubular acidosis, distal, autosomal dominant. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Hypocalcemia - Nephrocalcinosis - Osteomalacia - Pathologic fracture - Periodic hypokalemic paresis - Periodic paralysis - Postnatal growth retardation - Renal tubular acidosis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
frequency | How many people are affected by Cowden syndrome ? | Although the exact prevalence of Cowden syndrome is unknown, researchers estimate that it affects about 1 in 200,000 people. |
symptoms | What are the symptoms of Donnai-Barrow syndrome ? | What are the signs and symptoms of Donnai-Barrow syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Donnai-Barrow syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Low-molecular-weight proteinuria 100% Non-acidotic proximal tubulopathy 100% Abnormality of the fontanelles or cranial sutures 90% Aplasia/Hypoplasia of the corpus callosum 90% Broad nasal tip 90% Cognitive impairment 90% Depressed nasal bridge 90% High anterior hairline 90% Hypertelorism 90% Infra-orbital crease 90% Low-set, posteriorly rotated ears 90% Myopia 90% Proptosis 90% Proteinuria 90% Sensorineural hearing impairment 90% Short nose 90% Low-set ears 75% Broad forehead 50% Congenital diaphragmatic hernia 50% Diaphragmatic eventration 50% Macrocephaly 50% Omphalocele 50% Retinal detachment 50% Umbilical hernia 50% Visual impairment 50% Progressive visual loss 33% Retinal dystrophy 33% Abnormality of female internal genitalia 7.5% Chorioretinal coloboma 7.5% Hypoplasia of the iris 7.5% Intestinal malrotation 7.5% Iris coloboma 7.5% Seizures 7.5% Ventricular septal defect 7.5% Bicornuate uterus 5% Cataract 1% Aplasia/Hypoplasia of the corpus callosum 11/11 Hypertelorism 12/12 Sensorineural hearing impairment 5/5 Severe Myopia 5/5 Short nose 9/11 Wide anterior fontanel 9/12 Congenital diaphragmatic hernia 9/13 Posteriorly rotated ears 7/11 Iris coloboma 3/6 Omphalocele 6/12 Intestinal malrotation 3/13 Autosomal recessive inheritance - Hypoplasia of midface - Malar flattening - Partial agenesis of the corpus callosum - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Insulin-like growth factor I deficiency ? | What are the signs and symptoms of Insulin-like growth factor I deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Insulin-like growth factor I deficiency. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of metabolism/homeostasis - Autosomal recessive inheritance - Clinodactyly - Congenital onset - Decreased body weight - Delayed skeletal maturation - Hyperactivity - Intellectual disability - Intrauterine growth retardation - Microcephaly - Motor delay - Osteopenia - Ptosis - Radial deviation of finger - Sensorineural hearing impairment - Short attention span - Short stature - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
treatment | What are the treatments for Progressive Multifocal Leukoencephalopathy ? | Currently, the best available therapy is reversal of the immune-deficient state, since there are no effective drugs that block virus infection without toxicity. Reversal may be achieved by using plasma exchange to accelerate the removal of the therapeutic agents that put patients at risk for PML. In the case of HIV-associated PML, immediately beginning anti-retroviral therapy will benefit most individuals. Several new drugs that laboratory tests found effective against infection are being used in PML patients with special permission of the U.S. Food and Drug Administration. Hexadecyloxypropyl-Cidofovir (CMX001) is currently being studied as a treatment option for JVC because of its ability to suppress JVC by inhibiting viral DNA replication. |
outlook | What is the outlook for Adult Hodgkin Lymphoma ? | Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on the following: - The patient's signs and symptoms. - The stage of the cancer. - The type of Hodgkin lymphoma. - Blood test results. - The patient's age, gender, and general health. - Whether the cancer is recurrent or progressive. For Hodgkin lymphoma during pregnancy, treatment options also depend on: - The wishes of the patient. - The age of the fetus. Adult Hodgkin lymphoma can usually be cured if found and treated early. |
information | What is (are) Restless legs syndrome ? | Restless legs syndrome is a neurological condition that causes an irresistible urge to move the legs. The movement is triggered by strange or uncomfortable feelings, which occur mostly while the affected person is sitting or lying down and are worse at night. Movement (i.e. kicking, stretching, rubbing, or pacing) makes the discomfort go away, at least temporarily. Many people with restless legs syndrome also experience uncontrollable, repetitive leg movements that occur while they are sleeping or while relaxed or drowsy. Researchers have described early-onset and late-onset forms of restless legs syndrome. The early-onset form begins before age 45 and progresses slowly. The late-onset form begins after age 45, and its signs and symptoms tend to worsen more rapidly. Restless legs syndrome likely results from a combination of genetic, environmental, and lifestyle factors, many of which are unknown. Treatment is based on the signs and symptoms present in each person. |
symptoms | What are the symptoms of Porencephaly cerebellar hypoplasia internal malformations ? | What are the signs and symptoms of Porencephaly cerebellar hypoplasia internal malformations? The Human Phenotype Ontology provides the following list of signs and symptoms for Porencephaly cerebellar hypoplasia internal malformations. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Agenesis of cerebellar vermis - Atria septal defect - Autosomal recessive inheritance - Cerebellar hypoplasia - Porencephaly - Situs inversus totalis - Tetralogy of Fallot - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Cushing's Syndrome ? | Cushing's syndrome, also called hypercortisolism, is a rare endocrine disorder caused by chronic exposure of the body's tissues to excess levels of cortisol - a hormone naturally produced by the adrenal gland. Exposure to too much cortisol can occur from long-term use of synthetic glucocorticoid hormones to treat inflammatory illnesses. Pituitary adenomas (benign tumors of the pituitary gland) that secrete increased amounts of ACTH (adrenocorticotropic hormone, a substance that controls the release of cortisol) can also spur overproduction of cortisol. Tumors of the adrenal gland and ectopic ACTH syndrome (a condition in which ACTH is produced by various types of potentially malignant tumors that occur in different parts of the body) can cause similar problems with cortisol balance. Common symptoms of Cushing's syndrome include upper body obesity, severe fatigue and muscle weakness, high blood pressure, backache, elevated blood sugar, easy bruising, and bluish-red stretch marks on the skin. In women, there may be increased growth of facial and body hair, and menstrual periods may become irregular or stop completely. Neurological symptoms include difficulties with memory and neuromuscular disorders. |
information | What is (are) Fragile X Syndrome ? | Fragile X syndrome is the most common form of inherited developmental disability. A problem with a specific gene causes the disease. Normally, the gene makes a protein you need for brain development. But the problem causes a person to make little or none of the protein. This causes the symptoms of Fragile X. People with only a small change in the gene might not show any signs of Fragile X. People with bigger changes can have severe symptoms. These might include - Intelligence problems, ranging from learning disabilities to severe intellectual disabilities - Social and emotional problems, such as aggression in boys or shyness in girls - Speech and language problems, especially in boys A genetic blood test can diagnose Fragile X. There is no cure. You can treat some symptoms with educational, behavioral, or physical therapy, and with medicines. Getting treatment early can help. NIH: National Institute of Child Health and Human Development |
symptoms | What are the symptoms of Polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy ? | What are the signs and symptoms of Polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy? The Human Phenotype Ontology provides the following list of signs and symptoms for Polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of adipose tissue 90% Abnormality of epiphysis morphology 90% Arthralgia 90% Behavioral abnormality 90% Bone cyst 90% Bone pain 90% Cerebral cortical atrophy 90% Developmental regression 90% Limitation of joint mobility 90% Memory impairment 90% Reduced bone mineral density 90% Skeletal dysplasia 90% Ventriculomegaly 90% Agnosia 50% Cerebral calcification 50% Chorea 50% Hypertonia 50% Neurological speech impairment 50% Oculomotor apraxia 50% Seizures 50% Abnormality of the abdominal organs 7.5% Acute leukemia 7.5% Hydrocephalus 7.5% Abnormal upper motor neuron morphology - Abnormality of the foot - Abnormality of the hand - Aggressive behavior - Apraxia - Autosomal recessive inheritance - Axonal loss - Babinski sign - Basal ganglia calcification - Caudate atrophy - Cerebral atrophy - Disinhibition - EEG abnormality - Frontal lobe dementia - Gait disturbance - Gliosis - Hypoplasia of the corpus callosum - Lack of insight - Leukoencephalopathy - Myoclonus - Pathologic fracture - Peripheral demyelination - Personality changes - Primitive reflexes (palmomental, snout, glabellar) - Spasticity - Urinary incontinence - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
treatment | What are the treatments for Breast Cancer ? | Hormonal therapy keeps cancer cells from getting the hormones they need to grow. This treatment may include the use of drugs that change the way hormones work. Sometimes it includes surgery to remove the ovaries, which make female hormones. Like chemotherapy, hormonal therapy can affect cancer cells throughout the body. Often, women with early-stage breast cancer and those with metastatic breast cancer -- meaning cancer that has spread to other parts of the body -- receive hormone therapy in the form of tamoxifen. Hormone therapy with tamoxifen or estrogens can act on cells all over the body. However, it may increase the chance of developing endometrial cancer. If you take tamoxifen, you should have a pelvic examination every year to look for any signs of cancer. A woman should report any vaginal bleeding, other than menstrual bleeding, to her doctor as soon as possible. |
information | What is (are) Itching ? | Itching is skin tingling or irritation that makes you want to scratch the itchy area. It's a symptom of many health conditions. Common causes are - Allergic reactions - Eczema - Dry skin - Insect bites and stings - Irritating chemicals - Parasites such as pinworms, scabies, head and body lice - Pregnancy - Rashes - Reactions to medicines To soothe itchy skin, you can try cold compresses, lotions and lukewarm baths. Avoid scratching, wearing irritating fabrics and high heat and humidity. Most itching is not serious. However, if you itch all over, have hives that keep coming back or have itching without an apparent cause, you might require medical attention. |
information | What is (are) Tuberculosis (TB) ? | The Division of Tuberculosis Elimination (DTBE) Laboratory Branch (LB) provides services for the following tests on mycobacterial cultures. Any local health department, licensed physician's office, licensed laboratory or licensed health care facility may submit cultures for testing but they must be routed through either their state health department or other authorized facility.
Genotyping
State or local TB control programs
A genotyping laboratory, in Michigan is under contract with CDC to provide genotyping services to TB programs in the United States. Three genotyping methods to identify TB strains:
- Spoligotyping
- Mycobacterial interspersed repetitive unit (MIRU) analysis
- IS6110-based restriction fragment length polymorphism (RFLP) analysis
For more information, view the Guide to the Application of Genotyping to Tuberculosis Prevention and Control.
DTBE epidemiologic investigations and surveillance activities
- The LB provides support for DTBE epidemiologic investigations and surveillance activities. TB genotyping results, when combined with epidemiologic data, help to distinguish TB patients who are involved in the same chain of recent transmission.
Drug susceptibility testing
The LB performs drug susceptibility testing for selected Mycobacterium species referred from state or other authorized health facilities. Cultures of mycobacteria are tested by the indirect proportion method with antituberculosis drugs incorporated into 7H10 agar plates.
Additional Resources |
inheritance | Is Tubular aggregate myopathy inherited ? | Is tubular aggregate myopathy genetic? It is evident from family history studies that the condition can be passed through families in either an autosomal dominant or autosomal recessive fashion. Some cases appear to be due to dominant mutations in the STIM1 gene. Sporadic cases of tubular aggregate myopathy have also been reported. Sporadic is used to denote either a genetic disorder that occurs for the first time in a family due to a new mutation or the chance occurrence of a non-genetic disorder or abnormality that is not likely to recur in a family. |
symptoms | What are the symptoms of Tetralogy of fallot and glaucoma ? | What are the signs and symptoms of Tetralogy of fallot and glaucoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Tetralogy of fallot and glaucoma. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Autosomal dominant inheritance - Congenital glaucoma - Tetralogy of Fallot - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Glycogen storage disease type 7 ? | Glycogen storage disease type 7 (GSD7) is an inherited condition in which the body is unable to break down glycogen (a complex sugar) in the muscle cells. Because glycogen is an important source of energy, this can interfere with the normal functioning of muscle cells. The severity of the condition and the associated signs and symptoms vary, but may include muscle weakness and stiffness; painful muscle cramps; nausea and vomiting; and/or myoglobinuria (the presence of myoglobin in the urine) following moderate to strenuous exercise. Symptoms typically resolve with rest. GSD7 is most commonly diagnosed during childhood; however, some affected people may rarely develop symptoms during infancy or later in adulthood. Those who develop the condition during infancy may experience additional symptoms such as hypotonia (poor muscle tone), cardiomyopathy and breathing difficulties that often lead to a shortened lifespan (less than 1 year). This condition is caused by changes (mutations) in the PFKM gene and is inherited in an autosomal recessive manner. There is no specific treatment for GSD7; however, affected people are generally advised to avoid vigorous exercise and high-carbohydrate meals. |
information | What is (are) primary ciliary dyskinesia ? | Primary ciliary dyskinesia is a disorder characterized by chronic respiratory tract infections, abnormally positioned internal organs, and the inability to have children (infertility). The signs and symptoms of this condition are caused by abnormal cilia and flagella. Cilia are microscopic, finger-like projections that stick out from the surface of cells. They are found in the linings of the airway, the reproductive system, and other organs and tissues. Flagella are tail-like structures, similar to cilia, that propel sperm cells forward. In the respiratory tract, cilia move back and forth in a coordinated way to move mucus towards the throat. This movement of mucus helps to eliminate fluid, bacteria, and particles from the lungs. Most babies with primary ciliary dyskinesia experience breathing problems at birth, which suggests that cilia play an important role in clearing fetal fluid from the lungs. Beginning in early childhood, affected individuals develop frequent respiratory tract infections. Without properly functioning cilia in the airway, bacteria remain in the respiratory tract and cause infection. People with primary ciliary dyskinesia also have year-round nasal congestion and a chronic cough. Chronic respiratory tract infections can result in a condition called bronchiectasis, which damages the passages, called bronchi, leading from the windpipe to the lungs and can cause life-threatening breathing problems. Some individuals with primary ciliary dyskinesia have abnormally placed organs within their chest and abdomen. These abnormalities arise early in embryonic development when the differences between the left and right sides of the body are established. About 50 percent of people with primary ciliary dyskinesia have a mirror-image reversal of their internal organs (situs inversus totalis). For example, in these individuals the heart is on the right side of the body instead of on the left. Situs inversus totalis does not cause any apparent health problems. When someone with primary ciliary dyskinesia has situs inversus totalis, they are often said to have Kartagener syndrome. Approximately 12 percent of people with primary ciliary dyskinesia have a condition known as heterotaxy syndrome or situs ambiguus, which is characterized by abnormalities of the heart, liver, intestines, or spleen. These organs may be structurally abnormal or improperly positioned. In addition, affected individuals may lack a spleen (asplenia) or have multiple spleens (polysplenia). Heterotaxy syndrome results from problems establishing the left and right sides of the body during embryonic development. The severity of heterotaxy varies widely among affected individuals. Primary ciliary dyskinesia can also lead to infertility. Vigorous movements of the flagella are necessary to propel the sperm cells forward to the female egg cell. Because their sperm do not move properly, males with primary ciliary dyskinesia are usually unable to father children. Infertility occurs in some affected females and is likely due to abnormal cilia in the fallopian tubes. Another feature of primary ciliary dyskinesia is recurrent ear infections (otitis media), especially in young children. Otitis media can lead to permanent hearing loss if untreated. The ear infections are likely related to abnormal cilia within the inner ear. Rarely, individuals with primary ciliary dyskinesia have an accumulation of fluid in the brain (hydrocephalus), likely due to abnormal cilia in the brain. |
inheritance | Is xeroderma pigmentosum inherited ? | This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition. |
symptoms | What are the symptoms of Obesity Hypoventilation Syndrome ? | Many of the signs and symptoms of obesity hypoventilation syndrome (OHS) are the same as those of obstructive sleep apnea. This is because many people who have OHS also have obstructive sleep apnea.
One of the most common signs of obstructive sleep apnea is loud and chronic (ongoing) snoring. Pauses may occur in the snoring. Choking or gasping may follow the pauses.
Other symptoms include:
Daytime sleepiness
Morning headaches
Memory, learning, or concentration problems
Feeling irritable or depressed, or having mood swings or personality changes
You also may have rapid, shallow breathing. During a physical exam, your doctor might hear abnormal heart sounds while listening to your heart with a stethoscope. He or she also might notice that the opening to your throat is small and your neck is larger than normal.
Complications of Obesity Hypoventilation Syndrome
When left untreated, OHS can cause serious problems, such as:
Leg edema, which is swelling in the legs caused by fluid in the body's tissues.
Pulmonary hypertension, which is increased pressure in the pulmonary arteries. These arteries carry blood from your heart to your lungs to pick up oxygen.
Cor pulmonale, which is failure of the right side of the heart.
Secondary erythrocytosis, which is a condition in which the body makes too many red blood cells. |
treatment | What are the treatments for Colorectal Cancer ? | There are several treatment options for colorectal cancer, although most treatments begin with surgical removal of either the cancerous polyp or section of the colon. The choice of treatment depends on your age and general health, the stage of cancer, whether or not it has spread beyond the colon, and other factors. If tests show that you have cancer, you should talk with your doctor and make treatment decisions as soon as possible. Studies show that early treatment leads to better outcomes. Working With a Team of Specialists A team of specialists often treats people with cancer. The team will keep the primary doctor informed about the patient's progress. The team may include a medical oncologist who is a specialist in cancer treatment, a surgeon, a radiation oncologist who is a specialist in radiation therapy, and others. Before starting treatment, you may want another doctor to review the diagnosis and treatment plan. Some insurance companies require a second opinion. Others may pay for a second opinion if you request it. Clinical Trials for Colorectal Cancer Some colorectal cancer patients take part in studies of new treatments. These studies, called clinical trials, are designed to find out whether a new treatment is safe and effective. Often, clinical trials compare a new treatment with a standard one so that doctors can learn which is more effective. People with colorectal cancer who are interested in taking part in a clinical trial should talk with their doctor. The U.S. National Institutes of Health, through its National Library of Medicine and other Institutes, maintains a database of clinical trials at ClinicalTrials.gov. Click here to see a list of the current clinical trials on colorectal cancer. A separate window will open. Click the "x" in the upper right hand corner of the "Clinical Trials" window to return here. |
information | What is (are) Psoriasis ? | Psoriasis (sow RYE uh sis) is a chronic skin disease. Chronic means that it lasts a long time, often a lifetime. Psoriasis affects more than 5 million adults in the United States. It appears about equally in males and females. Psoriasis occurs when the skin cells grow too quickly. The body does not shed these excess cells and they build up on the surface of the skin, forming thick, scaly patches. Types of Psoriasis Psoriasis occurs in five different forms that affect both men and women. Most people have only one type of psoriasis at a time. Sometimes, one type of psoriasis will disappear and another will appear. Here is a brief overview of the different forms of psoriasis. - Is the most common form - appears as raised red patches covered in silvery white scales - usually shows up on the scalp, knees, elbows and lower back - patches may itch or be painful and can also crack and bleed. Is the most common form appears as raised red patches covered in silvery white scales usually shows up on the scalp, knees, elbows and lower back patches may itch or be painful and can also crack and bleed. - is the second most common form of psoriasis - usually begins in childhood or early adulthood - appears as small red spots on the skin. is the second most common form of psoriasis usually begins in childhood or early adulthood appears as small red spots on the skin. - appears as red sores in body folds, such as the groin and under the breasts - is more common in people who are overweight - often occurs along with another form of psoriasis. appears as red sores in body folds, such as the groin and under the breasts is more common in people who are overweight often occurs along with another form of psoriasis. - features white blisters surrounded by red skin - mainly affects adults - may occur all over the body, but usually affects one area. features white blisters surrounded by red skin mainly affects adults may occur all over the body, but usually affects one area. - is the rarest and most dangerous form of psoriasis - is characterized by inflammation - usually affects most of the body. is the rarest and most dangerous form of psoriasis is characterized by inflammation usually affects most of the body. |
information | What is (are) Wilson disease ? | Wilson disease is an inherited disorder in which excessive amounts of copper accumulate in the body, particularly in the liver, brain, and eyes. The signs and symptoms of Wilson disease usually first appear between the ages of 6 and 45, but they most often begin during the teenage years. The features of this condition include a combination of liver disease and neurological and psychiatric problems. Liver disease is typically the initial feature of Wilson disease in affected children and young adults; individuals diagnosed at an older age usually do not have symptoms of liver problems, although they may have very mild liver disease. The signs and symptoms of liver disease include yellowing of the skin or whites of the eyes (jaundice), fatigue, loss of appetite, and abdominal swelling. Nervous system or psychiatric problems are often the initial features in individuals diagnosed in adulthood and commonly occur in young adults with Wilson disease. Signs and symptoms of these problems can include clumsiness, tremors, difficulty walking, speech problems, impaired thinking ability, depression, anxiety, and mood swings. In many individuals with Wilson disease, copper deposits in the front surface of the eye (the cornea) form a green-to-brownish ring, called the Kayser-Fleischer ring, that surrounds the colored part of the eye. Abnormalities in eye movements, such as a restricted ability to gaze upwards, may also occur. |
exams and tests | How to diagnose Non-Small Cell Lung Cancer ? | Tests that examine the lungs are used to detect (find), diagnose, and stage non-small cell lung cancer. Tests and procedures to detect, diagnose, and stage non-small cell lung cancer are often done at the same time. Some of the following tests and procedures may be used: - Physical exam and history : An exam of the body to check general signs of health, including checking for signs of disease, such as lumps or anything else that seems unusual. A history of the patients health habits, including smoking, and past jobs, illnesses, and treatments will also be taken. - Laboratory tests : Medical procedures that test samples of tissue, blood, urine, or other substances in the body. These tests help to diagnose disease, plan and check treatment, or monitor the disease over time. - Chest x-ray: An x-ray of the organs and bones inside the chest. An x-ray is a type of energy beam that can go through the body and onto film, making a picture of areas inside the body. - CT scan (CAT scan): A procedure that makes a series of detailed pictures of areas inside the body, such as the chest, taken from different angles. The pictures are made by a computer linked to an x-ray machine. A dye may be injected into a vein or swallowed to help the organs or tissues show up more clearly. This procedure is also called computed tomography, computerized tomography, or computerized axial tomography. - Sputum cytology : A procedure in which a pathologist views a sample of sputum (mucus coughed up from the lungs) under a microscope, to check for cancer cells. - Fine-needle aspiration (FNA) biopsy of the lung: The removal of tissue or fluid from the lung using a thin needle. A CT scan, ultrasound, or other imaging procedure is used to locate the abnormal tissue or fluid in the lung. A small incision may be made in the skin where the biopsy needle is inserted into the abnormal tissue or fluid. A sample is removed with the needle and sent to the laboratory. A pathologist then views the sample under a microscope to look for cancer cells. A chest x-ray is done after the procedure to make sure no air is leaking from the lung into the chest. - Bronchoscopy : A procedure to look inside the trachea and large airways in the lung for abnormal areas. A bronchoscope is inserted through the nose or mouth into the trachea and lungs. A bronchoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue samples, which are checked under a microscope for signs of cancer. - Thoracoscopy : A surgical procedure to look at the organs inside the chest to check for abnormal areas. An incision (cut) is made between two ribs, and a thoracoscope is inserted into the chest. A thoracoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue or lymph node samples, which are checked under a microscope for signs of cancer. In some cases, this procedure is used to remove part of the esophagus or lung. If certain tissues, organs, or lymph nodes cant be reached, a thoracotomy may be done. In this procedure, a larger incision is made between the ribs and the chest is opened. - Thoracentesis : The removal of fluid from the space between the lining of the chest and the lung, using a needle. A pathologist views the fluid under a microscope to look for cancer cells. - Light and electron microscopy : A laboratory test in which cells in a sample of tissue are viewed under regular and high-powered microscopes to look for certain changes in the cells. - Immunohistochemistry : A test that uses antibodies to check for certain antigens in a sample of tissue. The antibody is usually linked to a radioactive substance or a dye that causes the tissue to light up under a microscope. This type of test may be used to tell the difference between different types of cancer. |
prevention | How to prevent Peripheral Arterial Disease (P.A.D.) ? | What Causes P.A.D.? The most common cause of P.A.D. is atherosclerosis, a buildup of plaque in the arteries. The exact cause of atherosclerosis isn't known. Certain people are at higher risk for developing atherosclerosis. The disease may start if certain factors damage the inner layers of the arteries. These factors include - smoking - high amounts of certain fats and cholesterol in the blood - high blood pressure - high amounts of sugar in the blood due to insulin resistance or diabetes. smoking high amounts of certain fats and cholesterol in the blood high blood pressure high amounts of sugar in the blood due to insulin resistance or diabetes. The major risk factors for P.A.D. are smoking, older age, and having certain diseases or conditions. The Effects of Smoking Smoking is the main risk factor for P.A.D. Your risk of P.A.D. increases four times if you smoke or have a history of smoking. On average, people who smoke and develop P.A.D. have symptoms 10 years earlier than people who don't smoke and develop P.A.D. Quitting smoking slows the progress of P.A.D. Smoking even one or two cigarettes a day can interfere with P.A.D. treatments. People who smoke and people who have diabetes are at highest risk for P.A.D. complications such as gangrene (tissue death) in the leg from decreased blood flow. Older Age Older age also is a risk factor for P.A.D. Plaque builds up in your arteries as you age. About 1 in every 20 Americans over the age of 50 has P.A.D. The risk continues to rise as you get older. Older age combined with other factors, such as smoking or diabetes, also puts you at higher risk for P.A.D. Diseases That Put You at Risk Many diseases and conditions can raise your risk of P.A.D., including - diabetes. About 1 in 3 people older than 50 who has diabetes also has P.A.D. - high blood pressure - high blood cholesterol - coronary heart disease (CHD) - stroke - metabolic syndrome (a group of risk factors that raise your risk of CHD and other health problems, such as P.A.D., stroke, and diabetes). diabetes. About 1 in 3 people older than 50 who has diabetes also has P.A.D. high blood pressure high blood cholesterol coronary heart disease (CHD) stroke metabolic syndrome (a group of risk factors that raise your risk of CHD and other health problems, such as P.A.D., stroke, and diabetes). A family history of these conditions makes P.A.D. more likely. Reducing Your Risk for P.A.D. Taking action to control your risk factors can help prevent or delay P.A.D. There are several helpful lifestyle changes you can make. - Quit smoking. Smoking is the biggest risk factor for P.A.D. - Eat a healthy diet. Look for foods that are low in total fat, saturated fat, trans fat, cholesterol, and sodium (salt). - Get regular exercise and physical activity. Quit smoking. Smoking is the biggest risk factor for P.A.D. Eat a healthy diet. Look for foods that are low in total fat, saturated fat, trans fat, cholesterol, and sodium (salt). Get regular exercise and physical activity. These lifestyle changes can reduce your risk for P.A.D. and its complications. They can also help prevent and control conditions such as diabetes and high blood pressure that can lead to P.A.D. |
information | What is (are) Elder Abuse ? | Many older people are victims of elder abuse. It is the mistreatment of an older person, usually by a caregiver. It can happen within the family. It can also happen in assisted living facilities or nursing homes. The mistreatment may be - Physical, sexual, or emotional abuse - Neglect or abandonment - Financial abuse - stealing of money or belongings Possible signs of elder abuse include unexplained bruises, burns, and injuries. There may also be bed sores and poor hygiene. The person may become withdrawn, agitated, and depressed. There may be a sudden change in the person's financial situation. Elder abuse will not stop on its own. Someone else needs to step in and help. If you think that an older person is in urgent danger, call 9-1-1. Otherwise, contact adult protective services. NIH: National Institute on Aging |
frequency | How many people are affected by histidinemia ? | Estimates of the incidence of histidinemia vary widely, ranging between 1 in 8,600 to 1 in 90,000 people. |
symptoms | What are the symptoms of Isotretinoin embryopathy like syndrome ? | What are the signs and symptoms of Isotretinoin embryopathy like syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Isotretinoin embryopathy like syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Atresia of the external auditory canal 90% Low-set, posteriorly rotated ears 90% Ventricular septal defect 90% Abnormality of the aorta 50% Abnormality of the nose 50% Anterior creases of earlobe 50% Atria septal defect 50% High forehead 50% Hypertelorism 50% Oral cleft 50% Overfolded helix 50% Patent ductus arteriosus 50% Preauricular skin tag 50% Prominent occiput 50% Short neck 50% Abnormality of the posterior cranial fossa - Anotia - Autosomal recessive inheritance - Cleft palate - Conotruncal defect - Hydrocephalus - Microtia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
genetic changes | What are the genetic changes related to protein S deficiency ? | Protein S deficiency is caused by mutations in the PROS1 gene. This gene provides instructions for making protein S, which is found in the bloodstream and is important for controlling blood clotting. Protein S helps block the activity of (inactivate) certain proteins that promote the formation of blood clots. Most mutations that cause protein S deficiency change single protein building blocks (amino acids) in protein S, which disrupts its ability to control blood clotting. Individuals with this condition do not have enough functional protein S to inactivate clotting proteins, which results in the increased risk of developing abnormal blood clots. Protein S deficiency can be divided into types I, II and III based on how mutations in the PROS1 gene affect protein S. |
susceptibility | Who is at risk for Sudden Cardiac Arrest? ? | The risk of sudden cardiac arrest (SCA) increases:
With age
If you are a man. Men are more likely than women to have SCA.
Some studies show that blacksparticularly those with underlying conditions such as diabetes, high blood pressure, heart failure, and chronic kidney disease or certain cardiac findings on tests such as an electrocardiogramhave a higher risk forSCA.
Major Risk Factor
The major risk factor for SCA is coronary heart disease. Most people who have SCA have some degree of coronary heart disease; however, many people may not know that they have coronary heart disease until SCA occurs. Usually their coronary heart disease is silentthat is, it has no signs or symptoms. Because of this, doctors and nurses have not detected it.
Many people who have SCA also have silent, or undiagnosed, heart attacks before sudden cardiac arrest happens. These people have no clear signs of heart attack, and they dont even realize that theyve had one. Read more about coronary heart disease risk factors.
Other Risk Factors
Other risk factors for SCA include:
A personal history of arrhythmias
A personal or family history of SCA or inherited disorders that make you prone toarrhythmias
Drug or alcohol abuse
Heart attack
Heart failure |
information | What is (are) Dentinogenesis imperfecta type 2 ? | Dentinogenesis imperfecta type 2 is a rare and severe form of dentinogenesis imperfecta, a condition that affects tooth development. People affected by the condition may have weak and discolored teeth. These problems can affect both primary (baby) teeth and permanent teeth. People with this form of dentinogenesis imperfecta have no normal teeth. Sensorineural hearing loss has also been found in some affected people. Dentinogenesis imperfecta type 2 is caused by changes (mutations) in the DSPP gene and is inherited in an autosomal dominant manner. Treatment is usually focused on protecting primary (baby) and then permanent teeth with preformed pediatric crowns and other interventions. The replacement of teeth might be considered in the future with dentures and/or implants. |
research | what research (or clinical trials) is being done for Childhood Non-Hodgkin Lymphoma ? | New types of treatment are being tested in clinical trials.
Information about clinical trials is available from the NCI website.
Patients may want to think about taking part in a clinical trial.
For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment. Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment. Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.
Patients can enter clinical trials before, during, or after starting their cancer treatment.
Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment. Clinical trials are taking place in many parts of the country. See the Treatment Options section that follows for links to current treatment clinical trials. These have been retrieved from NCI's listing of clinical trials. |
treatment | What are the treatments for Myopathy ? | Treatments for the myopathies depend on the disease or condition and specific causes. Supportive and symptomatic treatment may be the only treatment available or necessary for some disorders. Treatment for other disorders may include drug therapy, such as immunosuppressives, physical therapy, bracing to support weakened muscles, and surgery. |
exams and tests | How to diagnose Hydrops, Ectopic calcification, Moth-eaten skeletal dysplasia ? | How is HEM diagnosed? Establishing a diagnosis of HEM prenatally can be difficult and may require the interaction between a perinatologist, geneticist, and fetal/neonatal pathologist. Clinical examination, radiographs, genetic testing, and autopsy may be performed in order to establish a diagnosis of HEM. |
symptoms | What are the symptoms of Book syndrome ? | What are the signs and symptoms of Book syndrome? To our knowledge, Book syndrome has only been reported in one, large Swedish family (25 cases in 4 generations) and in one other isolated case. The signs and symptoms reported in the Swedish family included premolar aplasia (when the premolars fail to develop); excessive sweating (hyperhidrosis); and early whitening of the hair. Early whitening of the hair was the most constant symptom, being found in every affected family member. The age of onset of this symptom ranged from age 6 to age 23. In some cases, there was whitening of hair on other parts of the body such as the armipits, genital hair, and eyebrows. Two-thirds of the affected people had an abnormality of the sweat glands. In the isolated case, additional features that were reported include a narrow palate (roof of the mouth); hypoplastic (underdeveloped) nails; eyebrow anomalies; a unilateral simian crease; and poorly formed dermatoglyphics (skin patterns on the hands and feet). The Human Phenotype Ontology provides the following list of signs and symptoms for Book syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Premature graying of hair 90% Short palm 90% Abnormality of the eyebrow 50% Abnormality of the fingernails 50% Abnormality of the palate 50% Single transverse palmar crease 50% Autosomal dominant inheritance - Hypodontia - Palmoplantar hyperhidrosis - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
causes | What causes Juvenile primary lateral sclerosis ? | What causes juvenile primary lateral sclerosis? Juvenile primary lateral sclerosis is caused by mutations in the ALS2 gene. The ALS2 gene provides instructions for making a protein called alsin. Alsin is abundant in motor neurons, but its function is not fully understood. Mutations in the ALS2 gene alter the instructions for producing alsin. As a result, alsin is unstable and decays rapidly, or it is disabled and cannot function properly. It is unclear how the loss of functional alsin protein damages motor neurons and causes juvenile primary lateral sclerosis. |
information | What is (are) What I need to know about Gestational Diabetes ? | Your chances of getting gestational diabetes are higher if you
- are overweight - have had gestational diabetes before - have given birth to a baby weighing more than 9 pounds - have a parent, brother, or sister with type 2 diabetes - have prediabetes, meaning your blood glucose levels are higher than normal yet not high enough for a diagnosis of diabetes - are African American, American Indian, Asian American, Hispanic/Latina, or Pacific Islander American - have a hormonal disorder called polycystic ovary syndrome, also known as PCOS |
information | What is (are) Balance Problems ? | Have you ever felt dizzy, lightheaded, or as if the room were spinning around you? These can be very troublesome sensations. If the feeling happens often, it could be a sign of a balance problem. Balance problems are among the most common reasons that older adults seek help from a doctor. In 2008, an estimated 14.8 percent of American adults (33.4 million) had a balance or dizziness problem during the past year. Why Good Balance is Important Having good balance means being able to control and maintain your body's position, whether you are moving or remaining still. An intact sense of balance helps you - walk without staggering - get up from a chair without falling - climb stairs without tripping - bend over without falling. walk without staggering get up from a chair without falling climb stairs without tripping bend over without falling. The part of the inner ear responsible for balance is the vestibular system, often referred to as the labyrinth. To maintain your body's position, the labyrinth interacts with other systems in the body, such as the eyes, bones and joints. Good balance is important to help you get around, stay independent, and carry out daily activities. Learn how your body maintains its balance. When People Have Problems with Balance As they get older, many people experience problems with their sense of balance. They feel dizzy or unsteady, or as if they or their surroundings were in motion. Disturbances of the inner ear are a common cause. Vertigo, the feeling that you or the things around you are spinning, is also a common symptom. Balance disorders are one reason older people fall. Falls and fall-related injuries, such as hip fracture, can have a serious impact on an older person's life. If you fall, it could limit your activities or make it impossible to live independently. Many people often become more isolated after a fall. According to the Centers for Disease Control and Prevention, roughly more than one-third of adults ages 65 years and older fall each year. Among older adults, falls are the leading cause of injury-related deaths. Learn other ways a fall may affect an older adult's life. BPPV (Benign Paroxysmal Positional Vertigo) There are many types of balance disorders. One of the most common is benign paroxysmal positional vertigo, or BPPV. In BPPV, you experience a brief, intense feeling of vertigo when you change the position of your head, such as when rolling over to the left or right, upon getting out of bed, or when looking for an object on a high or low shelf. BPPV is more likely to occur in adults aged 60 and older, but can also occur in younger people. In BPPV, small calcium particles in the inner ear become displaced and disrupt the inner ear balance sensors, causing dizziness. The reason they become displaced is not known; the cause may be an inner ear infection, head injury, or aging. Labyrinthitis This is an infection or inflammation of the inner ear that causes dizziness and loss of balance. It is often associated with an upper respiratory infection such as the flu. Mnire's Disease Mnire's disease is a balance disorder that causes a person to experience - vertigo - hearing loss that comes and goes - tinnitus, which is a ringing or roaring in the ears - a feeling of fullness in the ear. vertigo hearing loss that comes and goes tinnitus, which is a ringing or roaring in the ears a feeling of fullness in the ear. It affects adults of any age. The cause is unknown. See a fuller list of balance disorders. There are many ways to treat balance disorders. Treatments vary depending on the cause. See your doctor if you are experiencing dizziness, vertigo, or other problems with your balance. |
causes | What causes Primary Familial Brain Calcification ? | What causes primary familial brain calcification (PFBC)? PFBC is a genetic condition. Mutations in the SLC20A2 gene are thought to cause about half of the cases of PFBC. Mutations in the PDGFRB and PDGFB genes have also been shown to cause PFBC. In some cases, the genes responsible have not yet been found. |
treatment | What are the treatments for Foodborne Illnesses ? | The only treatment needed for most foodborne illnesses is replacing lost fluids and electrolytes to prevent dehydration.
Over-the-counter medications such as loperamide (Imodium) and bismuth subsalicylate (Pepto-Bismol and Kaopectate) may help stop diarrhea in adults. However, people with bloody diarrheaa sign of bacterial or parasitic infectionshould not use these medications. If diarrhea is caused by bacteria or parasites, over-the-counter medications may prolong the problem. Medications to treat diarrhea in adults can be dangerous for infants and children and should only be given with a health care providers guidance.
If the specific cause of the foodborne illness is diagnosed, a health care provider may prescribe medications, such as antibiotics, to treat the illness.
Hospitalization may be required to treat lifethreatening symptoms and complications, such as paralysis, severe dehydration, and HUS. |
susceptibility | Who is at risk for Sickle Cell Disease? ? | In the United States, most people with sickle cell disease (SCD) are of African ancestry or identify themselves as black.
About 1 in 13 African American babies is born with sickle cell trait.
About 1 in every 365 black children is born with sickle cell disease.
There are also many people with this disease who come from Hispanic, southern European, Middle Eastern, or Asian Indian backgrounds.
Approximately 100,000 Americans have SCD. |
information | What is (are) Parasites - Trichinellosis (also known as Trichinosis) ? | Trichinellosis, also called trichinosis, is caused by eating raw or undercooked meat of animals infected with the larvae of a species of worm called Trichinella. Infection occurs commonly in certain wild carnivorous (meat-eating) animals such as bear or cougar, or omnivorous (meat and plant-eating) animals such as domestic pigs or wild boar. |
frequency | How many people are affected by spinal muscular atrophy with progressive myoclonic epilepsy ? | SMA-PME is a rare disorder; approximately a dozen affected families have been described in the scientific literature. |
information | What is (are) Pseudopseudohypoparathyroidism ? | Pseudopseudohypoparathyroidism (PPHP) is an inherited condition that causes short stature, round face, and short hand bones. PPHP causes joints and other soft tissues in the body to harden. It also affects how bones are formed. As a result, PPHP can cause bone, joint, and nerve damage, and this damage can cause lasting pain. Some people with PPHP (10%) also have learning disability. PHPP is caused by mutations in the GNAS gene and is inherited in an autosomal dominant fashion. This condition is usually inherited from the father (genomic imprinting). PPHP is genetically related to pseudohypoparathyroidism type Ia (PHP-1a). Signs and symptoms are similar, however people with PPHP do not show resistance to parathyroid hormone while people with PHP-1a do. Obesity is characteristic for PHP-1a and may be severe, while obesity is less prominent and may be absent among people with PPHP. Both PHP-1a and PPHP are caused by mutations that affect the function of the GNAS gene. But people who inherit the mutation from their mother develop PHP-1a; whereas those who inherit the mutation from their father develop PPHP. |
treatment | What are the treatments for dopamine transporter deficiency syndrome ? | These resources address the diagnosis or management of dopamine transporter deficiency syndrome: - Gene Review: Gene Review: Parkinson Disease Overview - Genetic Testing Registry: Infantile Parkinsonism-dystonia These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
inheritance | Is Klinefelter syndrome inherited ? | Is Klinefelter syndrome inherited? Klinefelter syndrome is not inherited, but usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction can result in reproductive cells with an abnormal number of chromosomes. For example, an egg or sperm cell may gain one or more extra copies of the X chromosome as a result of nondisjunction. If one of these reproductive cells contributes to the genetic makeup of a child, the child will have one or several extra X chromosomes in each of the body's cells. |
inheritance | Is Familial hypercholesterolemia inherited ? | How is familial hypercholesterolemia inherited? Familial hypercholesterolemia (FH) is usually inherited in an autosomal dominant manner (in which case it is referred to as heterozygous FH). Individuals inherit two copies of each gene (one from each parent). In an autosomal dominant condition, having only one abnormal (mutated) copy of the gene is sufficient to cause the condition. In most cases the mutated gene is inherited from an affected parent, but it is possible for the mutation to occur for the first time in the affected individual. An individual with an autosomal dominant condition has a 50% (1 in 2) chance to pass the mutation on to each of his/her children and a 50% chance to not pass on the mutation. More rarely, familial FH may be inherited in an autosomal recessive manner. This occurs when an individual inherits a mutated copy of the gene from both parents (this is also called homozygous FH). This is a much more severe form of FH. An individual with this form of FH will always pass on a mutated copy of the gene, and therefore each of his/her children will have heterozygous FH. |
genetic changes | What are the genetic changes related to X-linked lymphoproliferative disease ? | Mutations in the SH2D1A and XIAP genes cause XLP. SH2D1A gene mutations cause XLP1, and XIAP gene mutations cause XLP2. The SH2D1A gene provides instructions for making a protein called signaling lymphocyte activation molecule (SLAM) associated protein (SAP). This protein is involved in the functioning of lymphocytes that destroy other cells (cytotoxic lymphocytes) and is necessary for the development of specialized T cells called natural killer T cells. The SAP protein also helps control immune reactions by triggering self-destruction (apoptosis) of cytotoxic lymphocytes when they are no longer needed. Some SH2D1A gene mutations impair SAP function. Others result in an abnormally short protein that is unstable or nonfunctional, or prevent any SAP from being produced. The loss of functional SAP disrupts proper signaling in the immune system and may prevent the body from controlling the immune reaction to EBV infection. In addition, lymphomas may develop when defective lymphocytes are not properly destroyed by apoptosis. The XIAP gene provides instructions for making a protein that helps protect cells from undergoing apoptosis in response to certain signals. XIAP gene mutations can lead to an absence of XIAP protein or decrease the amount of XIAP protein that is produced. It is unknown how a lack of XIAP protein results in the signs and symptoms of XLP, or why features of this disorder differ somewhat between people with XIAP and SH2D1A gene mutations. |
exams and tests | How to diagnose Parasites - Trichinellosis (also known as Trichinosis) ? | A diagnosis of trichinellosis is made in patients whose signs and symptoms are compatible with trichinellosis, have a positive laboratory test for Trichinella, and who can recall eating raw or undercooked pork or wild game meat.
Laboratory diagnosis of Trichinella infection is most often made by a Trichinella antibody test. In some cases a muscle biopsy may be performed.
More on: Resources for Health Professionals: Diagnosis |
treatment | What are the treatments for Pelizaeus-Merzbacher Disease ? | There is no cure for Pelizaeus-Merzbacher disease, nor is there a standard course of treatment. Treatment is symptomatic and supportive and may include medication for movement disorders. |
symptoms | What are the symptoms of Hypophosphatemic rickets ? | What are the signs and symptoms of Hypophosphatemic rickets? The symptoms of hypophosphatemic rickets usually begin in infancy or early childhood. Specific symptoms and severity can vary greatly among affected children. The condition can be so mild that there are no noticeable symptoms, or so severe that it causes bowing of the legs and other bone deformities; bone pain; joint pain; and short stature. Other symptoms may include premature closure of the skull bones in babies (craniosynostosis); limited joint movement; and dental abnormalities. If left untreated, symptoms worsen over time. The Human Phenotype Ontology provides the following list of signs and symptoms for Hypophosphatemic rickets. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of dental enamel 90% Abnormality of the metaphyses 90% Bone pain 90% Genu varum 90% Premature loss of teeth 90% Craniofacial hyperostosis 50% Enthesitis 50% Osteoarthritis 50% Short stature 50% Hearing impairment 7.5% Recurrent fractures 7.5% Abnormality of pelvic girdle bone morphology - Arthralgia - Bowing of the legs - Elevated alkaline phosphatase - Elevated circulating parathyroid hormone (PTH) level - Femoral bowing - Fibular bowing - Flattening of the talar dome - Frontal bossing - Hypomineralization of enamel - Hypophosphatemia - Hypophosphatemic rickets - Metaphyseal irregularity - Osteomalacia - Phenotypic variability - Renal phosphate wasting - Renal tubular dysfunction - Shortening of the talar neck - Spinal canal stenosis - Spinal cord compression - Tibial bowing - Trapezoidal distal femoral condyles - X-linked dominant inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
symptoms | What are the symptoms of Dystonia 3, torsion, X-linked ? | What are the signs and symptoms of Dystonia 3, torsion, X-linked? The Human Phenotype Ontology provides the following list of signs and symptoms for Dystonia 3, torsion, X-linked. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Adult onset - Chorea - Myoclonus - Parkinsonism with favorable response to dopaminergic medication - Torsion dystonia - Tremor - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
causes | What causes Jejunal atresia ? | What causes jejunal atresia? Jejunal atresia occurs when the membrane that attaches the small intestines to the abdominal wall (called the mesentery) is partially or completely absent. As a result, a portion of the small intestines (the jejunum) twists around an artery that supplies blood to the colon (the marginal artery). This leads to an intestinal blockage or "atresia." Jejunal atresia typically occurs sporadically in people with no family history of the condition. In these cases, the exact underlying cause is generally unknown; however, scientists suspect that it may be a consequence of disrupted blood flow in the developing fetus. Rarely, more than one family member can be affected by jejunal atresia, suggesting that there may be a genetic component in some cases. |
inheritance | Is Dowling-Degos disease inherited ? | This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. |
symptoms | What are the symptoms of Kienbock's disease ? | What are the signs and symptoms of Kienbock's disease? Kienbock's disease most commonly affects men between the ages of 20 and 40 years, but it affects women as well. Most affected people report a history of trauma to the wrist. Symptoms can vary depending on the stage of the condition, but usually include pain that is localized to the affected area, decreased motion, swelling, and weakness in the affected hand. Rarely, the condition may occur in both hands. The Human Phenotype Ontology provides the following list of signs and symptoms for Kienbock's disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the wrist 90% Arthralgia 90% Aseptic necrosis 90% Bone pain 90% Limitation of joint mobility 90% Osteoarthritis 50% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | Do you have information about Impaired Driving | Summary : Impaired driving is dangerous. It's the cause of more than half of all car crashes. It means operating a motor vehicle while you are affected by - Alcohol - Legal or illegal drugs - Sleepiness - Distractions, such as using a cell phone or texting - Having a medical condition which affects your driving For your safety and the safety of others, do not drive while impaired. Have someone else drive you or take public transportation when you cannot drive. If you need to take a call or send a text message, pull over. National Highway Traffic Safety Administration |
symptoms | What are the symptoms of Stroke ? | The signs and symptoms of a stroke often develop quickly. However, they can develop over hours or even days.
The type of symptoms depends on the type of stroke and the area of the brain thats affected. How long symptoms last and how severe they are vary among different people.
Signs and symptoms of a stroke may include:
Sudden weakness
Paralysis (an inability to move) or numbness of the face, arms, or legs, especially on one side of the body
Confusion
Trouble speaking or understanding speech
Trouble seeing in one or both eyes
Problems breathing
Dizziness, trouble walking, loss of balance or coordination, and unexplained falls
Loss of consciousness
Sudden and severe headache
A transient ischemic attack (TIA) has the same signs and symptoms as a stroke. However, TIA symptoms usually last less than 12 hours (although they may last up to 24 hours). A TIA may occur only once in a persons lifetime or more often.
At first, it may not be possible to tell whether someone is having a TIA or stroke. All stroke-like symptoms require medical care.
If you think you or someone else is having a TIA or stroke, call 911 right away. Do not drive to the hospital or let someone else drive you. Call an ambulance so that medical personnel can begin life-saving treatment on the way to the emergency room. During a stroke, every minute counts.
Stroke Complications
After youve had a stroke, you may develop other complications, such as:
Blood clots and muscle weakness. Being immobile (unable to move around) for a long time can raise your risk of developing blood clots in the deep veins of the legs. Being immobile also can lead to muscle weakness and decreased muscle flexibility.
Problems swallowing and pneumonia. If a stroke affects the muscles used for swallowing, you may have a hard time eating or drinking. You also may be at risk of inhaling food or drink into your lungs. If this happens, you may develop pneumonia.
Loss of bladder control. Some strokes affect the muscles used to urinate. You may need a urinary catheter (a tube placed into the bladder) until you can urinate on your own. Use of these catheters can lead to urinary tract infections. Loss of bowel control or constipation also may occur after a stroke. |
symptoms | What are the symptoms of L1 syndrome ? | What are the signs and symptoms of L1 syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for L1 syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Aqueductal stenosis 90% Behavioral abnormality 90% Cognitive impairment 90% Gait disturbance 90% Hemiplegia/hemiparesis 90% Hydrocephalus 90% Hyperreflexia 90% Hypertonia 90% Migraine 90% Nausea and vomiting 90% Neurological speech impairment 90% Adducted thumb 50% Aganglionic megacolon 7.5% Seizures 7.5% Skeletal muscle atrophy 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. |
information | What is (are) Mucopolysaccharidosis type I ? | Mucopolysaccharidosis I (MPS I) is a condition that affects many parts of the body. It is a progressively debilitating disorder; however, the rate of progression varies among affected individuals. MPS I is caused by mutations in the IDUA gene. These mutations lead to reduced levels or the complete lack of the IDUA enzyme. Without the proper amount of this enzyme, large sugar molecules called glycosaminoglycans (GAGs) accumulate within cells called lysosomes. This causes the lysosomes to increase in size, causing many different organs and tissues of the body to become enlarged. This leads to the medical problems seen in the condition. MPS I was once divided into three separate syndromes: Hurler syndrome, Hurler-Scheie syndrome, and Scheie syndrome, listed from most to least severe. Because no biochemical differences have been identified and the clinical findings overlap, the condition is now divided into two subtypes, severe MPS I and attenuated MPS I. People with severe MPS I typically have an earlier onset of symptoms, a decline in intellectual function, and a shorter lifespan. Although there is no cure for MPS I, bone marrow transplant and enzyme replacement therapy are treatment options that may help manage the symptoms of this condition. |
treatment | What are the treatments for Dry Eye ? | Dry eye can be a temporary or ongoing condition, so treatments can be short term or may extend over long periods of time. The goal of treatment is to keep the eyes moist and relieve symptoms. Talk to your doctor to rule out other conditions that can cause dry eye, such as Sjgren's syndrome. You may need to treat these conditions. If dry eye results from taking a medication, your doctor may recommend switching to a medication that does not cause dry eye as a side effect. Here are treatments for dry eye. Medication. Cyclosporine, an anti-inflammatory medication, is a prescription eye drop available to treat certain kinds of dry eye. In people with certain kinds of dry eye, it may decrease damage to the cornea, increase basic tear production, and reduce symptoms of dry eye. It may take three to six months of twice-a-day dosages for the medication to work. Some patients with severe dry eye may need to use corticosteroid eye drops that decrease inflammation under close observation by an eye care professional. Nutritional Supplements. In some patients with dry eye, supplements of omega-3 fatty acids (especially DHA and EPA) may decrease symptoms of irritation. Talk with your eye care professional or your primary medical doctor about whether this is an option for you. Lenses. If dry eye is a result of wearing contact lens for too long, your eye care practitioner may recommend another type of lens or reducing the number of hours you wear your lenses. In the case of severe dry eye, your eye care professional may advise you not to wear contact lenses at all. Punctal plugs. Another option to increase the available tears on the eye surface is to plug the drainage holes, small circular openings at the inner corners of the eyelids where tears drain from the eye into the nose. Lacrimal plugs, also called punctal plugs, can be inserted painlessly by an eye care professional. These plugs are made of silicone or collagen. These plugs can be temporary or permanent. Punctal cautery. In some cases, a simple surgery called punctal cautery is recommended to permanently close the drainage holes. The procedure works similarly to installing punctal plugs, but cannot be reversed. |
inheritance | Is Polycythemia vera inherited ? | Is polycythemia vera inherited? Most cases of polycythemia vera (PCV) are not inherited from a parent and are acquired during a person's lifetime. The condition is associated with genetic changes (mutations) that are somatic, which means they occur in cells of the body but not in egg and sperm cells. In rare cases, the risk to develop PCV runs in families and sometimes appears to have an autosomal dominant pattern of inheritance. This means that only one altered copy of a gene in each cell is enough to give a person an increased risk for PCV. In other words, while an increased risk to develop PCV may be inherited, the condition itself is not inherited. |
information | What is (are) Syncope ? | Syncope is a medical term used to describe a temporary loss of consciousness due to the sudden decline of blood flow to the brain. Syncope is commonly called fainting or passing out. If an individual is about to faint, he or she will feel dizzy, lightheaded, or nauseous and their field of vision may white out or black out. The skin may be cold and clammy. The person drops to the floor as he or she loses consciousness. After fainting, an individual may be unconscious for a minute or two, but will revive and slowly return to normal. Syncope can occur in otherwise healthy people and affects all age groups, but occurs more often in the elderly.
Vasovagal
Carotid sinus
Situational |
outlook | What is the outlook for Prostate Cancer ? | Certain factors affect prognosis (chance of recovery) and treatment options. The prognosis (chance of recovery) and treatment options depend on the following: - The stage of the cancer (level of PSA, Gleason score, grade of the tumor, how much of the prostate is affected by the cancer, and whether the cancer has spread to other places in the body). - The patients age. - Whether the cancer has just been diagnosed or has recurred (come back). Treatment options also may depend on the following: - Whether the patient has other health problems. - The expected side effects of treatment. - Past treatment for prostate cancer. - The wishes of the patient. Most men diagnosed with prostate cancer do not die of it. |
information | What is (are) Stevens-Johnson syndrome ? | Stevens-Johnson Syndrome (SJS), also called erythema multiforme major, is a limited form of toxic epidermal necrolysis. This disorder affects the skin, mucous membranes and eyes. Stevens-Johnson syndrome occurs twice as often in men as women, and most cases appear in children and young adults under 30, although it can develop in people at any age. Having a gene called HLA-B 1502, increases risk of having Stevens-Johnson syndrome. It is an emergency medical condition that usually requires hospitalization. Treatment focuses on eliminating the underlying cause, controlling symptoms and minimizing complications and includes pain medication to reduce discomfort, medication to relieve itching (antihistamines), antibiotics to control infection, when needed and medication to reduce skin inflammation (topical steroids). |
treatment | What are the treatments for cerebral cavernous malformation ? | These resources address the diagnosis or management of cerebral cavernous malformation: - Angioma Alliance: Imaging and Diagnostics - Gene Review: Gene Review: Familial Cerebral Cavernous Malformation - Genetic Testing Registry: Cerebral cavernous malformation - Genetic Testing Registry: Cerebral cavernous malformations 1 - Genetic Testing Registry: Cerebral cavernous malformations 2 - Genetic Testing Registry: Cerebral cavernous malformations 3 - MedlinePlus Encyclopedia: Cerebral angiography These resources from MedlinePlus offer information about the diagnosis and management of various health conditions: - Diagnostic Tests - Drug Therapy - Surgery and Rehabilitation - Genetic Counseling - Palliative Care |
information | What is (are) Lesch-Nyhan syndrome ? | Lesch-Nyhan syndrome is a condition that occurs almost exclusively in males. It is characterized by neurological and behavioral abnormalities and the overproduction of uric acid. Uric acid is a waste product of normal chemical processes and is found in blood and urine. Excess uric acid can be released from the blood and build up under the skin and cause gouty arthritis (arthritis caused by an accumulation of uric acid in the joints). Uric acid accumulation can also cause kidney and bladder stones. The nervous system and behavioral disturbances experienced by people with Lesch-Nyhan syndrome include abnormal involuntary muscle movements, such as tensing of various muscles (dystonia), jerking movements (chorea), and flailing of the limbs (ballismus). People with Lesch-Nyhan syndrome usually cannot walk, require assistance sitting, and generally use a wheelchair. Self-injury (including biting and head banging) is the most common and distinctive behavioral problem in individuals with Lesch-Nyhan syndrome. |
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