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What is (are) Trichorhinophalangeal syndrome type 3 ? | Trichorhinophalangeal syndrome type 3 (TRPS3), also known as Sugio-Kajii syndrome, is an extremely rare inherited multisystem disorder. TRPS3 is characterized by short stature, sparse hair, a bulbous nasal tip and cone-shaped epiphyses (the growing ends of bones), as well as severe generalized shortening of all finger and toe bones (brachydactyly). The range and severity of symptoms may vary from case to case. TRPS3 is caused by mutations in the TRPS1 gene which is localized to 8q24.12. TRPS3 is inherited in an autosomal dominant manner. | |
What are the symptoms of Trichorhinophalangeal syndrome type 3 ? | What are the signs and symptoms of Trichorhinophalangeal syndrome type 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Trichorhinophalangeal 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) Abnormal hair quantity 90% Abnormal nasal morphology 90% Aplasia/Hypoplasia of the eyebrow 90% Brachydactyly syndrome 90% Clinodactyly of the 5th finger 90% Cone-shaped epiphysis 90% Frontal bossing 90% Long philtrum 90% Macrotia 90% Short distal phalanx of finger 90% Short stature 90% Thin vermilion border 90% Triangular face 90% Abnormality of the hip bone 50% Abnormality of the nail 50% Abnormality of the palate 50% Camptodactyly of finger 50% Hyperlordosis 50% Increased number of teeth 50% Muscular hypotonia 50% Pectus carinatum 50% Scoliosis 50% Abnormality of the nervous system - Accelerated bone age after puberty - Autosomal dominant inheritance - Avascular necrosis of the capital femoral epiphysis - Cone-shaped epiphyses of the middle phalanges of the hand - Coxa magna - Delayed skeletal maturation - Dental crowding - Osteopenia - Pear-shaped nose - Protruding ear - Short finger - Short foot - Short metacarpal - Short metatarsal - Short palm - Short phalanx of finger - Smooth philtrum - Sparse hair - Sparse lateral eyebrow - Underdeveloped nasal alae - 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. | |
What is (are) Lactate dehydrogenase deficiency ? | Lactate dehydrogenase deficiency is a condition that affects how the body breaks down sugar to use as energy in cells, primarily muscle cells. There are two types of lactate dehydrogenase deficiency: lactate dehydrogenase A deficiency (sometimes called glycogen storage disease XI) and lactate dehydrogenase B deficiency. People with lactate dehydrogenase A deficiency experience fatigue, muscle pain, and cramps during exercise (exercise intolerance). People with lactate dehydrogenase B deficiency typically do not have symptoms. Lactate dehydrogenase A deficiency is caused by mutations in the LDHA gene. Lactate dehydrogenase B deficiency is caused by mutations in the LDHB gene. Both types are inherited in an autosomal recessive pattern. | |
What is (are) Immunotactoid glomerulopathy ? | Immunotactoid glomerulopathy, also known as glomerulonephritis with organized monoclonal microtubular immunoglobulin deposits (GOMMID), is a very uncommon cause of glomerular disease. It is related to a similar disease known as fibrillary glomerulopathy, which is more common. Both disorders probably result from deposits derived from immunoglobulins, but in most cases the cause is idiopathic (unknown). On electron microscopy, immunotactoid glomerulopathy is characterized by the formation of microtubules which are much larger than the fibrils observed in fibrillary glomerulonephritis (30 to 50 versus 16 to 24 nm in diameter). The signs and symptoms include blood (hematuria) and protein (proteinuria) in the urine, kidney insufficiency and high blood pressure. Both fibrillary glomerulonephritis and immunotactoid glomerulopathy have been associated with hepatitis C virus infection and with malignancy and autoimmune disease. Also, patients with immunotactoid glomerulopathy have a greater risk to have chronic lymphocytic leukemia and B cell lymphomas and should be screened for all of these conditions. Treatment is generally determined by the severity of the kidney problems. | |
What is (are) Hemolytic uremic syndrome ? | Hemolytic uremic syndrome (HUS) is a disorder that usually occurs when an E. coli bacterial infection in the digestive system produces toxic substances that destroy red blood cells. Symptoms include vomiting and diarrhea, fever, lethargy, and weakness. In severe cases it can lead to kidney failure or death. While this condition is most common in children, it often has a more complicated presentation in adults. Treatment may include dialysis, corticosteroids, transfusions of packed red blood cells and plasmapheresis. Hemolytic uremic syndrome should be distinguished from atypical hemolytic uremic syndrome (aHUS). The two conditions have different causes and different signs and symptoms. | |
What are the symptoms of Hemolytic uremic syndrome ? | What are the signs and symptoms of Hemolytic uremic syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Hemolytic uremic 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) Acute kidney injury - Anuria - Autosomal dominant inheritance - Autosomal recessive inheritance - Cognitive impairment - Coma - Decreased serum complement C3 - Decreased serum complement factor B - Decreased serum complement factor H - Decreased serum complement factor I - Diarrhea - Dysphasia - Elevated serum creatinine - Fever - Hemiparesis - Hemolytic-uremic syndrome - Hyperlipidemia - Hypertension - Increased blood urea nitrogen (BUN) - Microangiopathic hemolytic anemia - Purpura - Reticulocytosis - Schistocytosis - Seizures - 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. | |
What causes Hemolytic uremic syndrome ? | What causes hemolytic uremic syndrome? Hemolytic uremic syndrome often occurs after a gastrointestinal infections with E. coli bacteria (Escherichia coli 0157:H7). The condition has also been linked to other gastrointestinal infections, including shigella and salmonella, as well as infections outside of the gastrointestinal system. The condition results when the bacteria lodge in the digestive tract and produce toxins that can enter the bloodstream. The toxins travel through the bloodstream and can destroy blood cells, causing acute kidney injury. | |
What is (are) Polydactyly ? | Polydactyly is a condition in which a person has more than five fingers per hand or five toes per foot. It is the most common birth defect of the hand and foot. Polydactyly can occur as an isolated finding such that the person has no other physical anomalies or intellectual impairment. However, it can occur in association with other birth defects and cognitive abnormalities as part of a genetic syndrome. In some cases, the extra digits may be well-formed and functional. Surgery may be considered especially for poorly formed digits or very large extra digits. Surgical management depends greatly on the complexity of the deformity. [1] [2] | |
What are the symptoms of Cerebral palsy ataxic ? | What are the signs and symptoms of Cerebral palsy ataxic? The Human Phenotype Ontology provides the following list of signs and symptoms for Cerebral palsy ataxic. 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 recessive inheritance - Broad-based gait - Cerebellar atrophy - Cerebral palsy - Dysarthria - Dysdiadochokinesis - Horizontal nystagmus - Infantile onset - Motor delay - 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. | |
What is (are) Doyne honeycomb retinal dystrophy ? | Doyne honeycomb retinal dystrophy (DHRD) is a condition that affects the eyes and causes vision loss. It is characterized by small, round, white spots known as drusen that accumulate beneath the retinal pigment epithelium (the pigmented layer of the retina). Over time, drusen may grow and come together, creating a honeycomb pattern. It usually begins in early to mid adulthood, but the age of onset varies. The degree of vision loss also varies. DHRD is usually caused by mutations in the EFEMP1 gene and is inherited in an autosomal dominant manner. | |
What are the symptoms of Doyne honeycomb retinal dystrophy ? | What are the signs and symptoms of Doyne honeycomb retinal dystrophy? The Human Phenotype Ontology provides the following list of signs and symptoms for Doyne honeycomb retinal dystrophy. 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 - Reticular pigmentary degeneration - Retinal dystrophy - Visual impairment - 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. | |
Is Doyne honeycomb retinal dystrophy inherited ? | How is Doyne honeycomb retinal dystrophy inherited? Doyne honeycomb retinal dystrophy (DHRD) is inherited in an autosomal dominant manner. This means that having only one changed (mutated) copy of the responsible gene in each cell is enough to cause signs and symptoms of the condition. When a person with an autosomal dominant condition has children, each child has a 50% (1 in 2) risk to inherit the mutated gene from the affected parent. Children who do not inherit the mutated gene will not develop or pass on the disease. | |
What are the treatments for Doyne honeycomb retinal dystrophy ? | How might Doyne honeycomb retinal dystrophy (DHRD) be treated? There is currently no cure for Doyne honeycomb retinal dystrophy (DHRD) and treatment options are limited. Management of hereditary retinal dystrophies generally focuses on vision rehabilitation, which involves the use of low vision aids, orientation, and mobility training. The goal of visual rehabilitation is to reach maximum function, a sense of well being, a personally satisfying level of independence, and optimum quality of life. Choroidal neovascularization (CNV), the growth of new blood vessels in the choroid, can develop in people with DHRD and has a poor visual prognosis. The authors of a 2011 study reported that 2 people with DHRD and CNV were treated with a course of intravitreal bevacizumab (injected into the eye). This treatment stopped fluid leakage and led to increased visual acuity. They proposed that recovery of visual acuity after treatment of CNV in these cases shows that the loss of retinal function may be reversible. However, this finding needs to be confirmed in more studies with a larger number of participants. There was also a case report of a person with malattia leventinese (a condition very similar to DHRD and sometimes considered the same) who was treated successfully with photodynamic therapy using verteporfin. The treatment reportedly prevented severe visual loss in the patient. The authors of this case report proposed that photodynamic therapy be considered as a possible treatment in patients with malattia leventinese or DHRD who develop CNV. You may consider participating in a clinical trial for treatment of retinal dystrophy. The U.S. National Institutes of Health, through the National Library of Medicine, developed ClinicalTrials.gov to provide patients, family members, and members of the public with current information on clinical research studies. There are many clinical trials currently enrolling individuals with hereditary retinal dystrophy. View a list of these studies here. After you click on a study, review its eligibility criteria to determine its appropriateness. We suggest reviewing the list of studies with your physician. Use the studys contact information to learn more. You can check this site often for regular updates. Use "retinal dystrophy" or "Doyne honeycomb retinal dystrophy" as your search term. | |
What is (are) Apocrine carcinoma ? | Apocrine carcinoma is a cancer of a sweat gland. Apocrine carcionoma most often develops under the arm (the axilla), but it can develop on the scalp or other parts of the body. The cause of apocrine carcinoma is unknown. Apocrine carcinoma usually appears as a single, small, painless bump (nodule) that can vary in color and slowly increases in size. The average age at the time of diagnosis is 62 years of age, and twice as many men are affected than women. Most apocrine carcinomas can be treated and are not fatal. Treatment of apocrine carcinoma is surgery to remove as much of the cancer as possible. Additional treatments such as radiation therapy and chemotherapy have been used to treat this condition, but the usefulness of these treatments is unproven. | |
What are the symptoms of Neuhauser Eichner Opitz syndrome ? | What are the signs and symptoms of Neuhauser Eichner Opitz syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Neuhauser Eichner Opitz 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) Hypertonia 90% Incoordination 90% Abnormality of movement 50% Joint hypermobility 50% Babinski sign 30% Behavioral abnormality 7.5% Muscular hypotonia 7.5% Neurological speech impairment 7.5% Areflexia - Athetosis - Autosomal dominant inheritance - Choreoathetosis - Dysarthria - Intention tremor - Lethargy - Recurrent encephalopathy - Truncal ataxia - 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. | |
What are the symptoms of Chondrodysplasia with joint dislocations, GPAPP type ? | What are the signs and symptoms of Chondrodysplasia with joint dislocations, GPAPP type? The Human Phenotype Ontology provides the following list of signs and symptoms for Chondrodysplasia with joint dislocations, GPAPP type. 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 recessive inheritance - Brachydactyly syndrome - Coronal craniosynostosis - Flat face - Genu valgum - Hearing impairment - High forehead - Narrow mouth - Patellar dislocation - Proptosis - Short foot - Short metacarpal - Short nose - Short stature - Short toe - Wide nasal bridge - 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. | |
What is (are) Cohen syndrome ? | Cohen syndrome is a congenital (present since birth) condition that was first described in 1973 by Dr. M.M. Cohen, Jr. When the syndrome was first described, it was believed that its main features were obesity, hypotonia (low muscle tone), intellectual disabilities, distinctive facial features with prominent upper central teeth and abnormalities of the hands and feet. Since Cohen syndrome was first described, over 100 cases have been reported worldwide. It is now known that the signs and symptoms present in people with Cohen syndrome may vary considerably. Although the exact cause of Cohen syndrome is unknown, some people with the condition have been found to have mutations in a gene called COH1 (also referred to as VPS13B). When Cohen syndrome is found to be inherited in families, it follows an autosomal recessive pattern. No cure is currently available; however, treatment for Cohen syndrome is focused on improving or alleviating signs and symptoms as they arise. | |
What are the symptoms of Cohen syndrome ? | What are the signs and symptoms of Cohen syndrome? The signs and symptoms of Cohen syndrome may vary greatly from person to person. Some studies have suggested that a large number of people with Cohen syndrome have similar facial features regardless of ethnic background, including thick hair and eyebrows, long eyelashes, wave-shaped palpebral fissures, broad nasal tip, smooth or shortened philtrum, and hypotonic appearance. Other findings that tend to be more common among almost all people with Cohen syndrome are listed below. Retinal dystrophy (a condition in which the muscles of the retina do not work properly) Progressive high myopia (nearsightedness) Acquired microcephaly (smaller than normal-sized head) Non-progressive mental retardation, global developmental delay Hypotonia Joint hyperextensibility (unusually large range of joint movement) The Human Phenotype Ontology provides the following list of signs and symptoms for Cohen 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 neutrophils 90% Abnormality of the eyelashes 90% Abnormality of the palate 90% Aplasia/Hypoplasia of the tongue 90% Arachnodactyly 90% Chorioretinal abnormality 90% Cognitive impairment 90% Gingival overgrowth 90% Hypoplasia of the zygomatic bone 90% Long toe 90% Low anterior hairline 90% Microcephaly 90% Muscular hypotonia 90% Myopia 90% Neurological speech impairment 90% Open mouth 90% Prominent nasal bridge 90% Reduced number of teeth 90% Sandal gap 90% Short philtrum 90% Tapered finger 90% Thick eyebrow 90% Abnormality of the voice 50% Clinodactyly of the 5th finger 50% Coarse hair 50% Cubitus valgus 50% Finger syndactyly 50% Genu valgum 50% Intrauterine growth retardation 50% Joint hypermobility 50% Macrodontia 50% Obesity 50% Prenatal movement abnormality 50% Short stature 50% Abnormality of retinal pigmentation 7.5% Abnormality of the hip bone 7.5% Abnormality of the mitral valve 7.5% Aplasia/Hypoplasia affecting the eye 7.5% Aplasia/Hypoplasia of the earlobes 7.5% Cryptorchidism 7.5% Iris coloboma 7.5% Kyphosis 7.5% Nystagmus 7.5% Optic atrophy 7.5% Pectus excavatum 7.5% Preauricular skin tag 7.5% Seizures 7.5% Sensorineural hearing impairment 7.5% Strabismus 7.5% Ventricular septal defect 7.5% Autosomal recessive inheritance - Cerebellar hypoplasia - Childhood-onset truncal obesity - Chorioretinal dystrophy - Convex nasal ridge - Delayed puberty - Facial hypotonia - Feeding difficulties in infancy - Growth hormone deficiency - High, narrow palate - Hypoplasia of the maxilla - Intellectual disability - Laryngomalacia - Leukopenia - Lumbar hyperlordosis - Macrodontia of permanent maxillary central incisor - Mitral valve prolapse - Motor delay - Neonatal hypotonia - Neutropenia - Pes planus - Reduced visual acuity - Short metacarpal - Short metatarsal - Single transverse palmar crease - Small for gestational age - Thick corpus callosum - Thoracic scoliosis - Visual impairment - 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. | |
How to diagnose Cohen syndrome ? | How is Cohen syndrome diagnosed? The diagnosis of Cohen syndrome is based on the symptoms present in the patient, but because the symptoms vary greatly from person to person, no consensus diagnostic criteria exist. Genetic testing is available for COH1, the only gene known to be associated with Cohen syndrome. However, the rate at which mutations are detected via genetic testing varies by ethnicity. For example, the mutation detection rate in COH1 is higher among the Finnish and Old Amish compared to individuals of from other populations. | |
What are the treatments for Cohen syndrome ? | How is Cohen syndrome treated? There is no cure for Cohen syndrome. Treatment is focused on improving or alleviating the signs and symptoms in the patient. Typically, when a person is first diagnosed with Cohen syndrome, he or she will undergo an eye and blood examination. If vision problems are detected, early correction of the problems, usually with glasses, often leads to general improvement of cognitive skills. If neutropenia (a condition in which an abnormally low number of white blood cells called neutrophils are present, which may result in an increased risk for infections) is discovered when the blood is examined, treatment should be given. Follow-up should include annual eye exams and repeat testing of white blood cell count. Early intervention and physical, occupational, and speech therapy can address developmental delay, hypotonia, joint hyperextensibility, and motor clumsiness. | |
What are the symptoms of Coxa vara, congenital ? | What are the signs and symptoms of Coxa vara, congenital? The Human Phenotype Ontology provides the following list of signs and symptoms for Coxa vara, congenital. 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 - Coxa vara - 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. | |
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. | |
What is (are) 47, XYY syndrome ? | 47, XYY syndrome is a condition in males characterized by features that occur due to having an extra copy of the Y chromosome in each cell. Signs and symptoms can vary and range from barely noticeable to more severe; many men with the extra Y chromosome are completely unaware of its presence. Appearance and intelligence are usually normal, but learning disabilities may be present. Other signs and symptoms may include autism spectrum disorder (usually on the milder end); speech or motor delay; low muscle tone; asthma; tall stature; impaired social skills; ADHD; and/or anxiety or mood disorders. While sexual development and infertility is usually normal, some adolescents and adults have testicular failure. 47, XYY syndrome usually is not inherited, occurring due to a random event in the formation of a sperm cell prior to conception. Management depends on the symptoms in each person and may include intervention or therapies for developmental delays, behavior or mood disorders; and/or special education. | |
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. | |
Is 47, XYY syndrome inherited ? | Is 47, XYY syndrome inherited? 47, XYY syndrome is usually not inherited. It is typically due to a random event during the formation of a sperm cell. Recurrence of 47, XYY syndrome in a family is rare. The recurrence risk for siblings and other family members is not thought to be increased. Additionally, men with 47, XYY are not reported to have an increased risk for a child with a chromosome variation. People with personal questions about recurrence risks are encouraged to speak with a genetic counselor or other genetic professional. | |
What are the symptoms of Malignant hyperthermia susceptibility type 3 ? | What are the signs and symptoms of Malignant hyperthermia susceptibility type 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Malignant hyperthermia susceptibility 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) Alcohol-induced rhabdomyolysis - Anesthetic-induced rhabdomylosis - Elevated serum creatine phosphokinase - Exercise-induced rhabdomyolysis - Fever - Heterogeneous - Hyperkalemia - Hyperphosphatemia - Hypertonia - Lactic acidosis - Malignant hyperthermia - Myopathy - Viral infection-induced rhabdomyolysis - 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. | |
What is (are) Spinocerebellar ataxia 3 ? | Spinocerebellar ataxia 3 is a rare movement disorder that is characterized by ataxia, clumsiness and weakness in the arms and legs, spasticity, a staggering lurching walk easily mistaken for drunkenness, difficulty with speech and swallowing, and involuntary eye movements sometimes accompanied by double vision, and bulging eyes. Some patients have dystonia or symptoms similar to those of Parkinson's disease. Others have twitching of the face or tongue, neuropathy, or problems with urination and the autonomic nervous system. Symptoms can begin any time between childhood and about 70 years of age. Spinocerebellar ataxia 3 is a progressive disease, meaning that symptoms get worse with time. Life expectancy ranges from the mid-thirties for those with severe forms of the disorder to a normal life expectancy for those with mild forms. Spinocerebellar ataxia is inherited in an autosomal dominant pattern and is caused by a trinucleotide repeat expansion in the ataxin-3 gene (ATXN3). | |
What are the symptoms of Spinocerebellar ataxia 3 ? | What are the signs and symptoms of Spinocerebellar ataxia 3? The Human Phenotype Ontology provides the following list of signs and symptoms for Spinocerebellar ataxia 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) Dysautonomia 7.5% Ataxia 57/57 Gaze-evoked nystagmus 15/20 External ophthalmoplegia 34/57 Dysarthria 30/57 Spasticity 62/139 Dystonia 17/57 Fasciculations 12/57 Parkinsonism 3/57 Absent Achilles reflex - Autosomal dominant inheritance - Babinski sign - Bradykinesia - Cerebellar atrophy - Chronic pain - Dementia - Dilated fourth ventricle - Diplopia - Distal amyotrophy - Dysmetric saccades - Dysphagia - Facial-lingual fasciculations - Genetic anticipation - Gliosis - Impaired horizontal smooth pursuit - Limb ataxia - Muscle cramps - Postural instability - Progressive - Progressive cerebellar ataxia - Proptosis - Ptosis - Rigidity - Spinocerebellar tract degeneration - Supranuclear ophthalmoplegia - Truncal ataxia - Urinary bladder sphincter dysfunction - 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. | |
What is (are) Pyoderma gangrenosum ? | Pyoderma gangrenosum is a rare, destructive inflammatory skin disease of which a painful nodule or pustule breaks down to form a progressively enlarging ulcer. Lesions may occur either in the absence of any apparent underlying disorder or in association with other diseases, such as ulcerative colitis, Crohn's disease, polyarthritis (an inflammation of several joints together), gammopathy, and other conditions . Pyoderma gangrenosum belongs to a group of skin diseases in which a common cellular denominator is the neutrophil. Neutrophils are a type of white blood cell or leukocyte which form an early line of defense against bacterial infections. Each year in the United States, pyoderma gangrenosum occurs in about 1 person per 100.000 people. | |
What are the symptoms of Pyoderma gangrenosum ? | What are the signs and symptoms of Pyoderma gangrenosum? The Human Phenotype Ontology provides the following list of signs and symptoms for Pyoderma gangrenosum. 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) Myositis 90% Pulmonary infiltrates 90% Skin rash 90% Skin ulcer 90% Abnormal blistering of the skin 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. | |
What are the treatments for Pyoderma gangrenosum ? | How might pyoderma gangrenosum be treated? Although antibiotics are often prescribed prior to having a correct diagnosis (and may be continued if there is a secondary infection or surrounding cellulitis), antibiotics are generally not helpful for treating uncomplicated cases of pyoderma gangrenosum (PG). The best documented treatments for PG are systemic corticosteroids and cyclosporin A. Smaller ulcers may be treated with strong topical steroid creams, steroid injections, special dressings, oral anti-inflammatory antibiotics, and/or other therapies. More severe PG typically requires immunosuppressive therapy (used to decrease the body's immune responses). Combinations of steroids with cytotoxic drugs may be used in resistant cases. There has reportedly been rapid improvement of PG with use of anti-tumor necrosis alpha therapy (such as infliximab), which is also used to treat Crohn's disease and other conditions. Skin transplants and/or the application of bioengineered skin is useful in selected cases as a complementary therapy to immunosuppressive treatment. The use of modern wound dressings is helpful to minimize pain and the risk of secondary infections. Treatment for PG generally does not involve surgery because it can result in enlargement of the ulcer; however, necrotic tissue (dying or dead tissue) should be gently removed. More detailed information about the treatment of pyoderma gangrenosum is available on eMedicine's Web site and can be viewed by clicking here. | |
What is (are) Multiple endocrine neoplasia type 2A ? | Multiple endocrine neoplasia type 2A (MEN 2A) is is an inherited disorder caused by mutations in the RET gene. Individuals with MEN 2A are at high risk of developing medullary carcinoma of the thyroid. About 50% will develop pheochromocytoma, a tumor of the adrenal glands which may increase blood pressure. Individuals with MEN 2A are also at increased risk for parathyroid adenoma or hyperplasia (overgrowth of the parathyroid gland). Occasionally an itchy skin condition called cutaneous lichen amyloidosis also occurs in people with type 2A disease. The condition is inherited in an autosomal dominant manner. | |
What are the symptoms of Multiple endocrine neoplasia type 2A ? | What are the signs and symptoms of Multiple endocrine neoplasia type 2A? The Human Phenotype Ontology provides the following list of signs and symptoms for Multiple endocrine neoplasia type 2A. 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 integument - Aganglionic megacolon - Autosomal dominant inheritance - Elevated calcitonin - Elevated urinary epinephrine - Hypercortisolism - Hyperparathyroidism - Hypertension - Medullary thyroid carcinoma - Parathyroid adenoma - Pheochromocytoma - 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. | |
Is Multiple endocrine neoplasia type 2A inherited ? | How is multiple endocrine neoplasia type 2A inherited? Multiple endocrine neoplasia type 2A (MEN 2A) is inherited in an autosomal dominant pattern. A person with MEN 2A often inherits the altered RET gene from one parent with the condition. | |
What are the symptoms of Mesomelic dysplasia Savarirayan type ? | What are the signs and symptoms of Mesomelic dysplasia Savarirayan type? The Human Phenotype Ontology provides the following list of signs and symptoms for Mesomelic dysplasia Savarirayan type. 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 hip bone 90% Abnormality of the tibia 90% Abnormality of the ulna 90% Bowing of the long bones 90% Micromelia 90% Short stature 90% Skeletal dysplasia 90% Sprengel anomaly 90% Cognitive impairment 50% Elbow dislocation 50% Abnormality of the foot - Abnormality of the thorax - Autosomal dominant inheritance - Delayed closure of the anterior fontanelle - Dislocated radial head - Fibular aplasia - Hip dislocation - Mesomelia - Short tibia - Talipes equinovalgus - 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. | |
What is (are) Chromosome 1p deletion ? | Chromosome 1p deletion is a chromosome abnormality that occurs when there is a missing copy of the genetic material located on the short arm (p) of chromosome 1. The severity of the condition and the signs and symptoms depend on the size and location of the deletion and which genes are involved. Features that often occur in people with chromosome 1p deletion include developmental delay, intellectual disability, behavioral problems, and distinctive facial features. Most cases are not inherited, but people can pass the deletion on to their children. Treatment is based on the signs and symptoms present in each person. | |
What is (are) Yellow nail syndrome ? | Yellow nail syndrome is characterized by yellow nails that lack a cuticle, grow slowly, and are loose or detached (onycholysis). Yellow nail syndrome is often associated with diseases of the lung or lymphedema. Yellow nail syndrome often affects older adults, though it can occur at any age. While the exact cause of this condition is unknown, it has been shown to run in some families, which suggests that there may be a genetic component in some cases. Unfortunately, there is no cure for this condition, but there are therapies available to treat the related lung diseases and lymphedema. | |
What are the symptoms of Yellow nail syndrome ? | What are the signs and symptoms of Yellow nail syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Yellow nail 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 nail color 90% Abnormality of the bronchi 90% Abnormality of the fingernails 90% Abnormality of the toenails 90% Lymphedema 90% Abnormality of the pleura 50% Recurrent respiratory infections 50% Respiratory insufficiency 50% Sinusitis 50% Neoplasm 7.5% Abnormality of the musculature - Autosomal dominant inheritance - Hypoplasia of lymphatic vessels - Predominantly lower limb lymphedema - Slow-growing nails - Yellow nails - 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. | |
What causes Yellow nail syndrome ? | Has a genetic cause of familial yellow nail syndrome been discovered? The exact cause of yellow nail syndrome remains unclear. There have been reports of several members in the same family being affected with this condition and also reports of children being affected at young ages. These reports have been used to suggest the possibility a genetic component to yellow nail syndrome. However, the possibility of a genetic cause for yellow nail syndrome remains a subject of debate, as most cases of this condition occur by chance in individuals who do not have a family history of this condition. Unfortunately, because there are so few cases of familial yellow nail syndrome, there is limited information and currently no known research about possible genetic causes. | |
What are the treatments for Yellow nail syndrome ? | How are the respiratory conditions associated with yellow nail syndrome treated? You can find further information on treatment of pleural effusions, bronchitis, sinusitis, and pneumonia at the following links to MedlinePlus.gov, the National Library of Medicine Web site designed to help you research your health questions. Pleural effusions: http://www.nlm.nih.gov/medlineplus/ency/article/000086.htm Bronchitis: http://www.nlm.nih.gov/medlineplus/chronicbronchitis.html Sinusitis: http://www.nlm.nih.gov/medlineplus/sinusitis.html Pneumonia: http://www.nlm.nih.gov/medlineplus/pneumonia.html | |
What is (are) Primary orthostatic hypotension ? | Primary orthostatic hypotension is a rare type of orthostatic hypotension. It is not a disease per se, but a condition caused by several disorders that affect a specific part of the autonomic nervous system, such as multiple system atrophy, young-onset Parkinsons disease, pure autonomic failure, dopamine beta-hydroxylase deficiency, familial dysautonomia, and pure autonomic failure among others. The autonomic nervous system is the part of the nervous system that regulates certain involuntary body functions such as heart rate, blood pressure, sweating, and bowel and bladder control. Orthostatic hypotension is a form of low blood pressure that happens when standing-up from sitting or lying down. Common symptoms may include dizziness, lightheadedness, generalized weakness, leg buckling, nausea, blurry vision, fatigue, and headaches. Additional symptoms can include chest pain (angina), head and neck pain (often affecting neck and shoulders with a coat hanger distribution), decline in cognitive functioning such as difficulty concentrating, temporary loss of consciousness or blackout. Some people with primary orthostatic hypotension may also have high blood pressure when lying down. The treatment depends upon several factors including the specific underlying cause including The treatment depends upon several factors including the specific underlying cause and may include physical counter-maneuvers like lying down, sitting down, squatting clenching buttocks, leg crossing, and support garment and medication. | |
What are the symptoms of Hemophagocytic lymphohistiocytosis, familial, 4 ? | What are the signs and symptoms of Hemophagocytic lymphohistiocytosis, familial, 4? The Human Phenotype Ontology provides the following list of signs and symptoms for Hemophagocytic lymphohistiocytosis, familial, 4. 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) Muscular hypotonia 5% Seizures 5% Anemia 7/7 Hepatomegaly 7/7 Hypertriglyceridemia 5/5 Splenomegaly 7/7 Hemophagocytosis 6/7 Thrombocytopenia 6/7 Increased serum ferritin 3/4 Neutropenia 5/7 Hypofibrinogenemia 3/5 Autosomal recessive inheritance - Fever - 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. | |
What is (are) Larsen syndrome ? | Larsen syndrome is a condition that causes abnormal development of the bones. Signs and symptoms may include clubfoot and numerous joint dislocations at birth (affecting the hips, knees and elbows); flexible joints; and a distinctive appearance of the face, hands and feet. Larsen syndrome is inherited in an autosomal dominant manner and is caused by mutations in the FLNB gene. Management may include surgeries (especially for hip dislocation), and physiotherapy. | |
What are the symptoms of Larsen syndrome ? | What are the signs and symptoms of Larsen syndrome? The signs and symptoms of Larsen syndrome vary from person to person, but may include the following: Joint dislocation (especially of the hips, knees, and elbows) Hypermobile joints Flat, rectangular face Depressed nasal bridge Prominent forehead Widely spaced eyes (hypertelorism) 'Spatula-like' thumbs Long fingers with broad ends and short nails Short arms Cleft palate Clubfoot Curved spine Short stature Breathing problems in infancy (due to soft cartilage in the airway) Cardiovascular (heart) anomalies The Human Phenotype Ontology provides the following list of signs and symptoms for Larsen 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 thumb phalanx 90% Anonychia 90% Arachnodactyly 90% Brachydactyly syndrome 90% Depressed nasal bridge 90% Frontal bossing 90% Hypertelorism 90% Joint hypermobility 90% Malar flattening 90% Abnormality of the wrist 50% Abnormality of epiphysis morphology 7.5% Abnormality of the cardiovascular system 7.5% Cleft palate 7.5% Cognitive impairment 7.5% Conductive hearing impairment 7.5% Craniosynostosis 7.5% Cryptorchidism 7.5% Finger syndactyly 7.5% Laryngomalacia 7.5% Respiratory insufficiency 7.5% Scoliosis 7.5% Short stature 7.5% Vertebral segmentation defect 7.5% Accessory carpal bones - Aortic dilatation - Atria septal defect - Autosomal dominant inheritance - Beaking of vertebral bodies - Bipartite calcaneus - Bronchomalacia - Cervical kyphosis - Cleft upper lip - Corneal opacity - Dislocated wrist - Elbow dislocation - Flat face - Hip dislocation - Hypodontia - Hypoplastic cervical vertebrae - Intellectual disability - Intrauterine growth retardation - Joint laxity - Knee dislocation - Multiple carpal ossification centers - Pectus carinatum - Pectus excavatum - Prominent forehead - Shallow orbits - Short metacarpal - Short metatarsal - Short nail - Spatulate thumbs - Spina bifida occulta - Spinal cord compression - Spondylolysis - Talipes equinovalgus - Talipes equinovarus - Tracheal stenosis - Tracheomalacia - Ventricular septal defect - 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. | |
Is Larsen syndrome inherited ? | How is Larson syndrome inherited? Larson syndrome is inherited in an autosomal dominant manner. A condition is autosomal dominant when having one copy of the changed (mutated) gene in each cell is enough to cause signs or symptoms of the condition. In some cases, an affected person inherits the mutation from one affected parent; in other cases, a new mutation occurs for the first time in the affected person. While some authors have suggested autosomal recessive inheritance in families with affected siblings and unaffected parents, it was found that some of these children were affected due to germline mosaicism. This means that multiple siblings in a family inherited a disease-causing mutation from an unaffected parent who had the mutation in some or all of their egg or sperm cells only (not other body cells). This can cause a condition to appear autosomal recessive. Also, some other conditions with autosomal recessive inheritance and symptoms that overlap with Larsen syndrome have been diagnosed as Larsen syndrome, but are now mostly considered different conditions. These conditions are usually more severe and due to mutations in different genes. | |
What are the symptoms of Yorifuji Okuno syndrome ? | What are the signs and symptoms of Yorifuji Okuno syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Yorifuji Okuno 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) Biliary atresia 5% Congenital diaphragmatic hernia 5% Inguinal hernia 5% Intestinal malrotation 5% Microcephaly 5% Microcolon 5% Seizures 5% Single umbilical artery 5% Umbilical hernia 5% Ureteral duplication 5% Autosomal dominant inheritance - Diabetes mellitus - Failure to thrive - Glycosuria - Hyperglycemia - Interrupted aortic arch - Intrauterine growth retardation - Pancreatic hypoplasia - Patent ductus arteriosus - Patent foramen ovale - Perimembranous ventricular septal defect - Pulmonic stenosis - Tetralogy of Fallot - Transposition of the great arteries - Truncus arteriosus - 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. | |
What is (are) Polycystic kidney disease ? | Polycystic kidney disease refers to a group of inherited kidney disorders characterized by the presence of multiple cysts in both kidneys. Normal kidney tissue is replaced by fluid-filled sacs that interfere with the their ability to filter waste products from the blood. The growth of cysts causes the kidneys to become enlarged and can lead to kidney failure. Cysts may also develop in other organs, particularly the liver. However, signs and symptom severity can vary greatly from person to person. Treatment is tailored to the individual based upon their signs and symptoms. The two major forms of polycystic kidney disease are distinguished by the usual age of onset and their pattern of inheritance: (1) Autosomal dominant polycystic kidney disease (ADPKD) is the most common form that usually causes symptoms between the ages of 30 and 40; but they can begin earlier, even in childhood. ADPKD can be further divided into type 1 and type 2, depending on the underlying genetic cause. (2) Autosomal recessive polycystic kidney disease (ARPKD) is a rare form that usually causes symptoms in infancy and early childhood and is often lethal early in life. Some people with ARPKD do not develop symptoms until later in childhood or even adulthood. | |
What are the symptoms of Polycystic kidney disease ? | What are the signs and symptoms of Polycystic kidney disease? Signs and symptoms vary greatly from person to person. But affected individuals typically develop multiple cysts in both kidneys, which impair their ability to filter waste products from the blood. Later in the disease, the cysts cause the kidneys to become enlarged and can lead to kidney failure. Cysts may also develop in other organs, particularly the liver. Frequent complications of polycystic kidney disease include dangerously high blood pressure (hypertension), severe pain in the back or sides, blood in the urine (hematuria), recurrent urinary tract infections, kidney stones, and heart valve abnormalities. People with this condition also have an increased risk an aortic aneurysm in the brain (an abnormal bulging of the large blood vessel at the base of the brain). Aneurysms can be life-threatening if they tear or rupture. The Human Phenotype Ontology provides the following list of signs and symptoms for Polycystic kidney 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) Polycystic kidney dysplasia 90% Anemia 50% Cystic liver disease 50% Hematuria 50% Hypertension 50% Nephrolithiasis 50% Proteinuria 50% Renal insufficiency 50% Abnormality of prenatal development or birth 7.5% Abnormality of the pancreas 7.5% Abnormality of the respiratory system 7.5% Aneurysm 7.5% Dilatation of the ascending aorta 7.5% Hydrocephalus 7.5% Recurrent fractures 7.5% Reduced bone mineral density 7.5% Sarcoma 7.5% Autosomal dominant inheritance - Cerebral aneurysm - Colonic diverticula - Hepatic cysts - Heterogeneous - Increased prevalence of valvular disease - 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. | |
What is (are) Non 24 hour sleep wake disorder ? | Non 24 hour sleep wake disorder refers to a steady pattern of one- to two-hour delays in sleep onset and wake times in people with normal living conditions. This occurs because the period of the person's sleep-wake cycle is longer than 24 hours. The condition most commonly affects people who are blind, due to an impaired sense of light-dark cycles. Non 24 hour sleep wake disorder can also affect sighted people. The cause of the disorder in these cases is incompletely understood, but studies suggest melatonin levels play a role. | |
What are the symptoms of Non 24 hour sleep wake disorder ? | What are the signs and symptoms of Non 24 hour sleep wake disorder? The Human Phenotype Ontology provides the following list of signs and symptoms for Non 24 hour sleep wake disorder. 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) Insomnia 90% Visual impairment 90% Anorexia 50% Incoordination 50% Memory impairment 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. | |
What is (are) 3-Hydroxyisobutyric aciduria ? | 3-Hydroxyisobutyric aciduria is a rare metabolic condition in which the body is unable to breakdown certain amino acids (the building blocks of protein). This leads to a toxic buildup of particular acids known as organic acids in the blood (organic acidemia), tissues and urine (organic aciduria). Signs and symptoms of 3-hydroxyisobutyric aciduria include developmental delay, characteristic facial features and brain abnormalities. The exact underlying cause is not well understood; however, researchers believe some cases are caused by changes (mutations) in the ALDH6A1 gene and inherited in an autosomal recessive manner. Because it is so rare, there is limited evidence to support the effectiveness of treatment, but a protein-restricted diet and carnitine supplementation have been tried with varying degrees of success. | |
What are the symptoms of 3-Hydroxyisobutyric aciduria ? | What are the signs and symptoms of 3-Hydroxyisobutyric aciduria? The signs and symptoms of 3-hydroxyisobutyric aciduria vary but may include: Developmental delay Intellectual disability Failure to thrive Characteristic facial features including a long philtrum and small, low-set ears Unusually small head (microcephaly) Congenital brain abnormalities Nausea Diarrhea Dehydration Lethargy The severity of the condition can also vary significantly from person to person. Some affected people may only experience mild attacks of vomiting with normal development, while others experience failure to thrive with severe intellectual disability and early death. The Human Phenotype Ontology provides the following list of signs and symptoms for 3-Hydroxyisobutyric aciduria. 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) Aminoaciduria 90% Abnormality of the outer ear 50% Long philtrum 50% Triangular face 50% Aplasia/Hypoplasia of the cerebellum 7.5% Aplasia/Hypoplasia of the corpus callosum 7.5% Cerebral calcification 7.5% Cerebral cortical atrophy 7.5% Intrauterine growth retardation 7.5% Microcephaly 7.5% Seizures 7.5% Sloping forehead 7.5% Ventriculomegaly 7.5% Abnormal facial shape - Abnormality of neuronal migration - Autosomal recessive inheritance - Congenital intracerebral calcification - Episodic ketoacidosis - Failure to thrive - Lactic 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. | |
What causes 3-Hydroxyisobutyric aciduria ? | What causes 3-hydroxyisobutyric aciduria? In many affected people, the exact underlying cause of 3-hydroxyisobutyric aciduria is poorly understood. Scientists believe that some cases are caused by changes (mutations) in the ALDH6A1 gene. This gene encodes an enzyme called methylmalonate semialdehyde dehydrogenase, which helps the body break down certain amino acids (the building blocks of protein) found in food. If this gene isn't working properly, the body is unable to break down the amino acids valine and thymine which leads to a build-up of toxic substances in the body and the many signs and symptoms of 3-hydroxyisobutyric aciduria. | |
Is 3-Hydroxyisobutyric aciduria inherited ? | Is 3-hydroxyisobutyric aciduria inherited? Cases of 3-hydroxyisobutyric aciduria thought to be caused by changes (mutations) in the ALDH6A1 gene are inherited in an autosomal recessive manner. This means that to be affected, a person must have a mutation in both copies of the responsible gene in each cell. The parents of an affected person usually each carry one mutated copy of the gene and are referred to as carriers. Carriers typically do not show signs or symptoms of the condition. When two carriers of an autosomal recessive condition have children, each child has a 25% (1 in 4) risk to have the condition, a 50% (1 in 2) risk to be a carrier like each of the parents, and a 25% chance to not have the condition and not be a carrier. | |
What are the treatments for 3-Hydroxyisobutyric aciduria ? | How might 3-hydroxyisobutyric aciduria be treated? There is no cure for 3-hydroxyisobutyric aciduria. Because it is so rare, there is limited evidence to support the effectiveness of treatment. However, affected people have been treated with a protein-restricted diet and carnitine supplementation with varying degrees of success. | |
What is (are) Limb-girdle muscular dystrophy type 2I ? | Limb-girdle muscular dystrophy type 2I (LGMD2I) is a form of limb-girdle muscular dystrophy, which refers to a group of conditions that cause weakness and wasting of the muscles in the arms and legs. The proximal muscles (those closest to the body such as the upper arms and thighs) are generally most affected by the condition. In LGMD2I, specifically, signs and symptoms often develop in late childhood (average age 11.5 years) and may include difficulty running and walking. The symptoms gradually worsen overtime and affected people generally rely on a wheelchair for mobility approximately 23-26 years after onset. LGMD2I is caused by changes (mutations) in the FKRP gene and is inherited in an autosomal recessive manner. There is, unfortunately, no cure for LGMD2I and treatment is based on the signs and symptoms present in each person. | |
What are the symptoms of Limb-girdle muscular dystrophy type 2I ? | What are the signs and symptoms of Limb-girdle muscular dystrophy type 2I? The Human Phenotype Ontology provides the following list of signs and symptoms for Limb-girdle muscular dystrophy type 2I. 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) Exercise-induced myoglobinuria 25% Achilles tendon contracture - Autosomal recessive inheritance - Calf muscle hypertrophy - Congenital muscular dystrophy - Difficulty climbing stairs - Difficulty walking - Dilated cardiomyopathy - Elevated serum creatine phosphokinase - Frequent falls - Hyperlordosis - Impaired left ventricular function - Kyphosis - Macroglossia - Muscle cramps - Myalgia - Nocturnal hypoventilation - Pelvic girdle muscle weakness - Proximal muscle weakness - Restrictive respiratory insufficiency - Scoliosis - Shoulder girdle muscle weakness - Thigh hypertrophy - Toe walking - Variable expressivity - Vertebral fusion - Waddling gait - 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. | |
What are the symptoms of Deafness conductive ptosis skeletal anomalies ? | What are the signs and symptoms of Deafness conductive ptosis skeletal anomalies? The Human Phenotype Ontology provides the following list of signs and symptoms for Deafness conductive ptosis skeletal anomalies. 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 hip bone 90% Atresia of the external auditory canal 90% Blepharophimosis 90% Clinodactyly of the 5th finger 90% Conductive hearing impairment 90% Elbow dislocation 90% Epicanthus 90% Fine hair 90% Narrow nasal bridge 90% Ptosis 90% Abnormality of the palate 50% Myopia 50% Single transverse palmar crease 50% Autosomal recessive inheritance - Chronic otitis media - Ectodermal dysplasia - 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. | |
What are the symptoms of Microcephaly, holoprosencephaly, and intrauterine growth retardation ? | What are the signs and symptoms of Microcephaly, holoprosencephaly, and intrauterine growth retardation? The Human Phenotype Ontology provides the following list of signs and symptoms for Microcephaly, holoprosencephaly, and intrauterine growth retardation. 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) Anterior segment dysgenesis - Atresia of the external auditory canal - Autosomal recessive inheritance - Convex nasal ridge - Hypertelorism - Intrauterine growth retardation - Macrotia - Microcephaly - Narrow mouth - Retrognathia - Semilobar holoprosencephaly - Strabismus - Telecanthus - Ventricular septal defect - 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. | |
What is (are) Aromatic L-amino acid decarboxylase deficiency ? | Aromatic l-amino acid decarboxylase (AADC) deficiency is an inherited condition that affects the way signals are passed between certain cells in the nervous system. Individuals affected by this condition often have severe movement disorders, abnormal eye movements, autonomic symptoms, and neurological impairment. The condition is caused by mutations in the DDC gene. It is inherited in an autosomal recessive pattern. Treatment includes a variety of medications which may result in varying levels of success in individual patients. Physical, occupational, and speech therapy may also be of benefit. | |
What are the symptoms of Aromatic L-amino acid decarboxylase deficiency ? | What are the signs and symptoms of Aromatic L-amino acid decarboxylase deficiency? Symptoms, which typically present during the first year of life, include severe developmental delay, weak muscle tone (hypotonia), muscle stiffness, difficulty moving, and involuntary writhing movements of the limbs (athetosis). This condition may also cause infants to lack energy, feed poorly, startle easily, and have sleep disturbances. Many people with AADC deficiency exprience episodes called oculogyric crises (also called "spells" or "attacks"), which are characterized by abnormal rotation of the eyeballs, extreme irritability and agitation, pain, muscle spasms, and uncontrolled movements of the head and neck.. These episodes can last for many hours and can be times of extreme concern for caregivers and family members. AADC deficiency may also affect the autonomic nervous system, which controls involuntary body processes like regulation of blood pressure and body temperature. Autonomic symptoms may include droopy eye lids (ptosis), constriction of the pupils of the eyes (miosis), inappropriate or impaired sweating, nasal congestion, drooling, reduced ability to control body temperature, low blood pressure (hypotension), gastroesophageal reflux, low blood sugar (hypoglycemia), fainting (syncope), and cardiac arrest. The signs and symptoms of AADC deficiency tend to worsen late in the day or when the individual is tired, and improve after sleep. The Human Phenotype Ontology provides the following list of signs and symptoms for Aromatic L-amino acid decarboxylase 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 the face - Autosomal recessive inheritance - Babinski sign - Choreoathetosis - Constipation - Decreased CSF homovanillic acid (HVA) - Diarrhea - Emotional lability - Feeding difficulties in infancy - Gastroesophageal reflux - Hyperhidrosis - Hyperreflexia - Hypotension - Infantile onset - Intermittent hypothermia - Irritability - Limb dystonia - Limb hypertonia - Miosis - Muscular hypotonia of the trunk - Myoclonus - Ptosis - Sleep disturbance - Temperature instability - 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. | |
What are the symptoms of Dermoids of cornea ? | What are the signs and symptoms of Dermoids of cornea? The Human Phenotype Ontology provides the following list of signs and symptoms for Dermoids of cornea. 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) Opacification of the corneal stroma 90% Visual impairment 90% Abnormality of the pupil 50% Abnormality of the eye - X-linked 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. | |
What are the symptoms of Syndactyly type 9 ? | What are the signs and symptoms of Syndactyly type 9? The Human Phenotype Ontology provides the following list of signs and symptoms for Syndactyly type 9. 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 metacarpal bones 90% Adactyly 90% Aplasia/Hypoplasia of the distal phalanges of the toes 90% Aplasia/Hypoplasia of the thumb 90% Brachydactyly syndrome 90% Short hallux 90% Toe syndactyly 90% Clinodactyly of the 5th finger 50% Symphalangism affecting the phalanges of the hand 50% Synostosis of carpal bones 50% 3-4 finger syndactyly - Aplasia/Hypoplasia of the hallux - Aplasia/Hypoplasia of the middle phalanx of the 2nd finger - Aplasia/Hypoplasia of the middle phalanx of the 5th finger - Autosomal recessive inheritance - Proximal/middle symphalangism of 5th finger - Single transverse palmar crease - Symphalangism affecting the phalanges of the hallux - 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. | |
What is (are) Dextrocardia with situs inversus ? | Dextrocardia with situs inversus is a condition that is characterized by abnormal positioning of the heart and other internal organs. In people affected by dextrocardia, the tip of the heart points towards the right side of the chest instead of the left side. Situs inversus refers to the mirror-image reversal of the organs in the chest and abdominal cavity. Some affected people have no obvious signs or symptoms. However, a small percentage of people also have congenital heart defects, usually transposition of the great vessels. Dextrocardia with situs inversus can also be associated with primary ciliary dyskinesia (also known as Kartagener syndrome). Treatment typically depends on the heart or physical problems the person may have in addition to dextrocardia with situs inversus. | |
What causes Dextrocardia with situs inversus ? | What causes dextrocardia with situs inversus? The exact cause of dextrocardia with situs inversus is not known, but the condition results from the abnormal positioning of the internal organs during fetal development. More than 60 known genes are important for the proper positioning and patterning of the organs in the body. However, a specific genetic cause of dextrocardia with situs inversus has not been identified and inheritance patterns have not been confirmed in most cases. Some people have dextrocardia with situs inversus as part of an underlying condition called primary ciliary dyskinesia. Primary ciliary dyskinesia can result from changes (mutations) in several different genes, including the DNAI1 and DNAH5 gene; however, the genetic cause is unknown in many families. | |
Is Dextrocardia with situs inversus inherited ? | Is dextrocardia with situs inversus inherited? In most cases of dextrocardia with situs inversus, a specific genetic cause has not been identified and inheritance patterns have not been confirmed. However, approximately 25% of affected people have primary ciliary dyskinesia, which is typically inherited in an autosomal recessive manner. This means that to be affected, a person must have a mutation in both copies of the responsible gene in each cell. The parents of an affected person usually each carry one mutated copy of the gene and are referred to as carriers. Carriers typically do not show signs or symptoms of the condition. When two carriers of an autosomal recessive condition have children, each child has a 25% (1 in 4) risk to have the condition, a 50% (1 in 2) risk to be a carrier like each of the parents, and a 25% chance to not have the condition and not be a carrier. | |
How to diagnose Dextrocardia with situs inversus ? | How is dextrocardia with situs inversus diagnosed? In some cases, a diagnosis of dextrocardia with situs inversus is suspected based on the presence of concerning signs and symptoms; however, it is often discovered by chance when an x-ray or ultrasound is performed to investigate a different condition. Computed tomography (CT) scanning is typically the preferred examination to confirm the diagnosis of dextrocardia with situs inversus. Magnetic resonance imaging may be substituted in cases that are associated with congenital heart defects. | |
What are the treatments for Dextrocardia with situs inversus ? | How might dextrocardia with situs inversus be treated? Treatment typically depends on the heart or physical problems the person may have in addition to dextrocardia with situs inversus. For example, infants born with congenital heart defects or other organ malformations may require surgery. The management of people affected by Kartagener syndrome typically includes measures to enhance clearance of mucus, prevent respiratory infections, and treat bacterial infections. GeneReviews offers more specific information on the treatment of Kartagener syndrome and other types of primary ciliary dyskinesia. Please click on the link to access this resource. | |
What is (are) Osteogenesis imperfecta type VI ? | Osteogenesis imperfecta type 6 is a form of osteogenesis imperfecta which results in weakened bones that breaks easily. When viewed under a microscope, bone tissue has a distinct "fish-scale" pattern. Individuals with osteogenesis imperfecta type 6 appear to be healthy at birth and do not have fractures until after 6 months of age. Osteogenesis imperfecta type 6 may be caused by mutations in the SERPINF1 gene and is inherited in an autosomal recessive pattern. | |
What are the symptoms of Osteogenesis imperfecta type VI ? | What are the signs and symptoms of Osteogenesis imperfecta type VI? Osteogenesis imperfecta type VI is a moderate to severe form of osteogenesis imperfecta that affects the bones but is distinctive in the bone characteristics at a microscopic level (histology). People with this condition have bones that are thin (osteopenia) and break easily beginning after 6 months of age. A defect in how the bone uses minerals to build and strengthen bone (mineralization) causes a distinct "fish-scale" pattern. Unlike other types of osteogenesis imperfecta, the whites of the eyes (sclerae) and teeth do not appear to be affected. The Human Phenotype Ontology provides the following list of signs and symptoms for Osteogenesis imperfecta type VI. 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 recessive inheritance - Beaking of vertebral bodies - Biconcave vertebral bodies - Coxa vara - Increased susceptibility to fractures - Ligamentous laxity - Protrusio acetabuli - Vertebral compression fractures - 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. | |
Is Osteogenesis imperfecta type VI inherited ? | How is osteogenesis imperfecta type 6 inherited? Osteogenesis imperfecta type 6 has an autosomal recessive pattern of inheritance. Autosomal recessive inheritance means that two copies of the gene in each cell are altered. The parents of a child with an autosomal recessive disorder typically are not affected, but each carry one copy of the altered gene (they are referred to as carriers). When two carriers for an autosomal recessive condition have children, each child has a 25% (1 in 4) risk to have the condition, a 50% (1 in 2) risk to be a carrier, and a 25% chance to not have the condition and not be a carrier. The children of an individual with an autosomal recessive type of OI are always carriers for a disease-causing mutation. | |
How to diagnose Osteogenesis imperfecta type VI ? | Is genetic testing available for osteogenesis imperfecta? Genetic testing is available for individuals with osteogenesis imperfecta. The rate for detecting mutations in the genes that are responsible for OI varies depending on the type. Carrier testing may be available to relatives of affected individuals if the type of OI, disease-causing gene, and specific mutation in the affected individual are known. Prenatal testing for at-risk pregnancies can be performed by analysis of collagen made by fetal cells obtained by chorionic villus sampling (CVS) at about ten to 12 weeks' gestation if an abnormality of collagen has been identified in cells from the affected individual. Analysis of collagen after an amniocentesis (usually performed at 15-20 weeks gestation) is not useful, because the cells obtained do not produce type I collagen. However, prenatal testing can be performed by analyzing the genes (molecular genetic testing) if the specific mutation has been identified in the affected relative. GeneTests lists the names of laboratories that are performing genetic testing for different types of osteogenesis imperfecta. To view the contact information for the clinical laboratories conducting testing, click here and click on "Testing" next to the type of OI in which you are interested. Please note that most of the laboratories listed through GeneTests do not accept direct contact from patients and their families; therefore, if you are interested in learning more, you will need to work with a health care provider or genetics professional. Genetics professionals, such as genetic counselors, can also explain the inheritance of OI in detail including information about genetic risks to specific family members. | |
What is (are) Cerebellar degeneration ? | Cerebellar degeneration refers to the deterioration of neurons in the cerebellum (the area of the brain that controls muscle coordination and balance). Conditions that cause cerebellar degeneration may also affect other areas of the central nervous system, such as the spinal cord, the cerebral cortex, and the brain stem. Signs and symptoms of cerebellar degeneration may include a wide-based, uncoordinated walk; a back and forth tremor in the trunk of the body; uncoordinated movements of the arms and legs; slow and slurred speech; and nystagmus. Cerebellar degeneration can be caused by a variety of factors including inherited gene changes (mutations), chronic alcohol abuse, and paraneoplastic disorders. Treatment for cerebellar degeneration varies depending on the underlying cause. | |
What are the symptoms of Cerebellar degeneration ? | What are the signs and symptoms of cerebellar degeneration? Cerebellar degeneration is primarily characterized by a wide-legged, unsteady, lurching walk that is usually accompanied by a back and forth tremor in the trunk of the body. Other signs and symptoms may include slow, unsteady and jerky movement of the arms or legs; slowed and slurred speech; and nystagmus. Although cerebellar disorders usually strike adults in middle age, the age of symptomatic onset varies depending on the underlying cause of the degeneration. Studies have shown that many patients with movement disorders caused by damage to the cerebellum also have psychiatric symptoms. These studies suggest that patients with cerebellar diseases may benefit from screening and treatment of psychiatric disorders. | |
What causes Cerebellar degeneration ? | What causes cerebellar degeneration? Cerebellar degeneration can be caused by a variety of different conditions. Neurological diseases that can lead to cerebellar degeneration include: Acute and hemorrhagic stroke can result in a lack of blood flow or oxygen to the brain, leading to the death of neurons in the cerebellum and other brain structures. Cerebellar cortical atrophy, multisystem atrophy and olivopontocerebellar degeneration are progressive degenerative disorders that affect various parts of the nervous system, including the cerebellum. Spinocerebellar ataxias, including Friedreich ataxia, are caused by inherited changes (mutations) in many different genes and are characterized by cell death in the cerebellum, brain stem, and spinal cord. Transmissible spongiform encephalopathies (such as 'Mad Cow Disease' and Creutzfeldt-Jakob disease) are associated with inflammation of the brain, particularly in the cerebellum, that is caused by abnormal proteins. Multiple sclerosis occurs when the insulating membrane (myelin) that wraps around and protects nerve cells (including those of the cerebellum) become damaged. Other conditions that can lead to temporary or permanent cerebellar damage include chronic alcohol abuse and paraneoplastic disorders. | |
Is Cerebellar degeneration inherited ? | Is cerebellar degeneration inherited? Cerebellar degeneration is associated with a variety of inherited and non-inherited conditions. One example of an inherited form of cerebellar degeneration is spinocerebellar ataxia (SCA), which refers to a group of conditions characterized by degenerative changes of the cerebellum, brain stem, and spinal cord. Depending on the type, SCA can be inherited in an autosomal dominant, autosomal recessive, or X-linked manner. Other complex conditions such as multiple sclerosis and multisystem atrophy are also associated with cerebellar degeneration. These conditions are likely caused by the interaction of multiple genetic and environmental factors. Although complex conditions are not passed directly from parent to child, reports of familial forms exist. This suggests that a genetic susceptibility to these conditions can run in families. Many causes of cerebellar degeneration are acquired (non-genetic and non-inherited) including strokes, transmissible spongiform encephalopathies, chronic alcohol abuse and paraneoplastic disorders. | |
How to diagnose Cerebellar degeneration ? | How is cerebellar degeneration diagnosed? A diagnosis of cerebellar degeneration is often suspected when concerning signs and symptoms, such as a poorly coordinated gait (walk) and uncoordinated hand/finger movements, are present. For hereditary forms of cerebellar degeneration, genetic testing may be used to confirm the diagnosis. However, this is only an option if the disease-causing gene for that particular condition is known. In cerebellar degeneration caused by acquired (non-genetic and non-inherited) conditions or conditions with an unknown genetic cause, imaging studies such as computed tomography (CT scan) and/or magnetic resonance imaging (MRI scan) may be necessary to establish a diagnosis. A CT scan is an imaging method that uses x-rays to create pictures of cross-sections of the body, while an MRI scan uses powerful magnets and radio waves to create pictures of the brain and surrounding nerve tissues. Both of these imaging methods can be used to identify brain abnormalities found in people with cerebellar degeneration. Is genetic testing available for cerebellar degeneration? Genetic testing is only available for cerebellar degeneration that is caused by an inherited change (mutation) in a disease-causing gene. For example, genetic testing is available for many different genes known to cause spinocerebellar ataxia (SCA) which is one cause of inherited cerebellar degeneration. For more information on genetic testing for SCA, please click here. For many conditions known to cause cerebellar ataxia, the genetic cause is unknown or the condition is acquired (non-genetic and non-inherited). Genetic testing is not an option for people with these conditions. | |
What are the treatments for Cerebellar degeneration ? | How might cerebellar degeneration be treated? There is currently no cure for hereditary forms of cerebellar degeneration. In these cases, treatment is usually supportive and based on the signs and symptoms present in each person. For example, a variety of drugs may be used to treat gait abnormalities. Physical therapy can strengthen muscles, while special devices or appliances can assist in walking and other activities of daily life. In acquired (non-genetic and non-inherited) forms of cerebellar degeneration, some signs and symptoms may be reversible with treatment of the underlying cause. For example, paraneoplastic cerebellar degeneration may improve after successful treatment of the underlying cancer. For alcoholic/nutritional cerebellar degeneration, symptoms are often relieved with discontinuation of alcohol abuse, a normal diet and dietary supplementation with thiamine and other B vitamins. | |
What is (are) Hyperkalemic periodic paralysis ? | Hyperkalemic periodic paralysis is a genetic condition that causes episodes of extreme muscle weakness, usually beginning in infancy or early childhood. Most often, these episodes involve a temporary inability to move muscles in the arms and legs. Episodes tend to increase in frequency until about age 25, after which they may occur less frequently. Factors that can trigger attacks include rest after exercise, potassium-rich foods, stress, fatigue, and long periods without food. Muscle strength improves between attacks, although many affected people continue to experience mild stiffness, particularly in muscles of the face and hands. This condition is caused by mutations in the SCN4A gene and is inherited in an autosomal dominant fashion. | |
What are the symptoms of Hyperkalemic periodic paralysis ? | What are the signs and symptoms of Hyperkalemic periodic paralysis? The Human Phenotype Ontology provides the following list of signs and symptoms for Hyperkalemic periodic paralysis. 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) Cerebral palsy 90% EMG abnormality 90% Gait disturbance 50% Hyperkalemia 50% Involuntary movements 50% Myalgia 50% Myotonia 50% Arrhythmia 7.5% Bowel incontinence 7.5% Chest pain 7.5% Congestive heart failure 7.5% Feeding difficulties in infancy 7.5% Flexion contracture 7.5% Hypertonia 7.5% Hypokalemia 7.5% Hyponatremia 7.5% Malignant hyperthermia 7.5% Myopathy 7.5% Ophthalmoparesis 7.5% Paresthesia 7.5% Respiratory insufficiency 7.5% Skeletal muscle atrophy 7.5% Skeletal muscle hypertrophy 7.5% Autosomal dominant inheritance - Episodic flaccid weakness - Infantile onset - Periodic hyperkalemic paralysis - 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. | |
What are the symptoms of Charcot-Marie-Tooth disease type 1C ? | What are the signs and symptoms of Charcot-Marie-Tooth disease type 1C? The Human Phenotype Ontology provides the following list of signs and symptoms for Charcot-Marie-Tooth disease type 1C. 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 - Decreased motor nerve conduction velocity - Distal amyotrophy - Distal muscle weakness - Distal sensory impairment - Hypertrophic nerve changes - Hyporeflexia - Juvenile onset - Onion bulb formation - Pes cavus - Segmental peripheral demyelination/remyelination - 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. | |
What is (are) Osteopetrosis autosomal recessive 4 ? | Osteopetrosis is a bone disease that makes bones abnormally dense and prone to breakage (fracture). Researchers have described several major types of osteopetrosis, which are usually distinguished by their pattern of inheritance: autosomal dominant, autosomal recessive, or X-linked. The different types of the disorder can also be distinguished by the severity of their signs and symptoms. Mutations in at least nine genes cause the various types of osteopetrosis. | |
What are the symptoms of Osteopetrosis autosomal recessive 4 ? | What are the signs and symptoms of Osteopetrosis autosomal recessive 4? The Human Phenotype Ontology provides the following list of signs and symptoms for Osteopetrosis autosomal recessive 4. 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 epiphysis morphology 90% Abnormality of hair texture 90% Abnormality of temperature regulation 90% Abnormality of the metaphyses 90% Abnormality of the ribs 90% Abnormality of visual evoked potentials 90% Anemia 90% Bone pain 90% Bowing of the long bones 90% Bruising susceptibility 90% Cognitive impairment 90% Craniosynostosis 90% Delayed eruption of teeth 90% Hearing impairment 90% Hepatomegaly 90% Hydrocephalus 90% Increased bone mineral density 90% Lymphadenopathy 90% Macrocephaly 90% Narrow chest 90% Nystagmus 90% Optic atrophy 90% Pallor 90% Premature loss of primary teeth 90% Recurrent fractures 90% Recurrent respiratory infections 90% Reduced bone mineral density 90% Sinusitis 90% Splenomegaly 90% Tremor 90% Visual impairment 90% Skeletal muscle atrophy 50% Abnormality of coagulation 7.5% Abnormality of the pulmonary valve 7.5% Apnea 7.5% Cranial nerve paralysis 7.5% Hypocalcemia 7.5% Hypophosphatemia 7.5% Pulmonary hypertension 7.5% Autosomal recessive inheritance - Facial palsy - Hepatosplenomegaly - Osteopetrosis - Reticulocytosis - 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. | |
What is (are) Proximal symphalangism ? | Proximal symphalangism, which is also called Cushing's symphalangism, is a rare genetic condition characterized by the fusion of the proximal joints in the hands and feet. These individuals usually have straight fingers and are unable to make a fist. Other joints may also be affected, leading to stiff joints in the elbows, ankles and wrists. Hearing loss due to the fusion of the auditory ossicles (bones in the middle ear) is also a characteristic feature. This condition is inherited in an autosomal dominant pattern and is caused by a mutation in the NOG gene or GDF5 gene. | |
What are the symptoms of Proximal symphalangism ? | What are the signs and symptoms of Proximal symphalangism? The Human Phenotype Ontology provides the following list of signs and symptoms for Proximal symphalangism. 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) Camptodactyly of finger 90% Proximal symphalangism (hands) 90% Symphalangism affecting the phalanges of the hand 90% Synostosis of carpal bones 90% Tarsal synostosis 90% Carpal synostosis 75% Abnormality of the metacarpal bones 50% Brachydactyly syndrome 50% Conductive hearing impairment 50% Elbow dislocation 50% Humeroradial synostosis 50% Sensorineural hearing impairment 50% Stapes ankylosis 50% Aplasia/Hypoplasia of the middle phalanges of the hand 7.5% Aplasia/Hypoplasia of the middle phalanges of the toes 7.5% Clinodactyly of the 5th finger 7.5% Finger syndactyly 7.5% Strabismus 7.5% Distal symphalangism (hands) 5% Metacarpophalangeal synostosis 1% Abnormal finger flexion creases - Autosomal dominant inheritance - Pes planus - Proximal/middle symphalangism of 5th finger - Short 5th metacarpal - 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. | |
How to diagnose Proximal symphalangism ? | Is genetic testing available for Cushing's symphalangism? GeneTests lists the names of laboratories that are performing genetic testing for Cushing's symphalangism. To view the contact information for the clinical laboratories conducting testing, click here. Please note: Most of the laboratories listed through GeneTests do not accept direct contact from patients and their families; therefore, if you are interested in learning more, you will need to work with a health care provider or a genetics professional. Below, we provide a list of online resources that can assist you in locating a genetics professional near you. | |
What is (are) Osteopetrosis autosomal recessive 2 ? | Osteopetrosis is a bone disease that makes bones abnormally dense and prone to breakage (fracture). Researchers have described several major types of osteopetrosis, which are usually distinguished by their pattern of inheritance: autosomal dominant, autosomal recessive, or X-linked. The different types of the disorder can also be distinguished by the severity of their signs and symptoms. Mutations in at least nine genes cause the various types of osteopetrosis. | |
What are the symptoms of Osteopetrosis autosomal recessive 2 ? | What are the signs and symptoms of Osteopetrosis autosomal recessive 2? The Human Phenotype Ontology provides the following list of signs and symptoms for Osteopetrosis autosomal recessive 2. 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) Anemia - Autosomal recessive inheritance - Blindness - Carious teeth - Chronic rhinitis due to narrow nasal airway - Cranial hyperostosis - Diaphyseal sclerosis - Extramedullary hematopoiesis - Facial paralysis - Genu valgum - Hepatosplenomegaly - Mandibular osteomyelitis - Mandibular prognathia - Optic atrophy - Osteopetrosis - Pancytopenia - Persistence of primary teeth - Recurrent fractures - 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. | |
What is (are) Dihydrolipoamide dehydrogenase deficiency ? | Dihydrolipoamide dehydrogenase (DLD) deficiency is a very rare condition that can vary in age of onset, symptoms and severity. The condition may be characterized by early-onset lactic acidosis and delayed development (most commonly); later-onset neurological dysfunction; or adult-onset isolated liver disease. Signs and symptoms may include lactic acidosis shortly after birth; hypotonia and lethargy in infancy; feeding difficulties; seizures; and various other health issues. Liver problems can range from hepatomegaly to life-threatening liver failure. Symptoms often occur in episodes that may be triggered by illness or other stresses on the body. Many affected infants do not survive the first few years of life; those who survive through early childhood often have growth delay and intellectual disability. Some with onset later in childhood may have neurological dysfunction with normal cognitive development. DLD deficiency is caused by mutations in the DLD gene and is inherited in an autosomal recessive manner. | |
What are the symptoms of Dihydrolipoamide dehydrogenase deficiency ? | What are the signs and symptoms of Dihydrolipoamide dehydrogenase deficiency? The signs and symptoms of dihydrolipoamide dehydrogenase (DLD) deficiency can vary widely among affected people. Early-onset DLD deficiency typically appears in early infancy with decreased muscle tone (hypotonia), lethargy, and lactic acidosis. Lactic acidosis can cause nausea, vomiting, severe breathing problems, and an abnormal heartbeat. Symptoms typically occur in episodes that may be triggered by illness, injury, or other stresses on the body. Affected infants often do not survive their initial episode or may die within the first few years of life during a recurrent episode. Children who live beyond the first two to three years often have growth delays and neurological problems such as intellectual disability, spasticity, ataxia, and seizures. However, normal intellect has been reported in a few people with the early-onset form of DLD deficiency. Isolated liver involvement, which can range from hepatomegaly (enlarged liver) to life-threatening liver failure, can also occur in the newborn period, or as late as the 3rd decade of life. A few people with DLD deficiency have become affected later in childhood with ataxia and dystonia, with normal cognitive development. Rarely, affected people have muscle weakness (particularly during exercise) or a weakened heart muscle (cardiomyopathy). The Human Phenotype Ontology provides the following list of signs and symptoms for Dihydrolipoamide dehydrogenase 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) Aminoaciduria 90% Cognitive impairment 50% Gait disturbance 50% Hepatomegaly 50% Microcephaly 50% Muscular hypotonia 50% Hepatic failure 7.5% Hypoglycemia 7.5% Decreased liver function 5% Elevated hepatic transaminases 5% Ataxia - Autosomal recessive inheritance - Dystonia - Encephalopathy - Feeding difficulties - Hypertrophic cardiomyopathy - Lactic acidosis - Lethargy - Metabolic acidosis - Seizures - Variable expressivity - 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. | |
What causes Dihydrolipoamide dehydrogenase deficiency ? | What causes dihydrolipoamide dehydrogenase deficiency? Dihydrolipoamide dehydrogenase (DLD) deficiency is caused by changes (mutations) in the DLD gene. This gene gives the body instructions to make an enzyme called dihydrolipoamide dehydrogenase (DLD). DLD is one part of 3 different groups of enzymes that work together (enzyme complexes). These enzyme complexes are involved in breaking down amino acids commonly found in protein-rich foods, and in other reactions that help to convert energy from food into a form that our cells can use. Mutations in the DLD gene impair the function of DLD, preventing the 3 enzyme complexes from functioning properly. This causes a build-up of molecules that are normally broken down, which in turn leads to tissue damage, lactic acidosis and other chemical imbalances. The brain is especially sensitive to the buildup of molecules and lack of cellular energy, which is why there are neurological problems associated with DLD deficiency. | |
Is Dihydrolipoamide dehydrogenase deficiency inherited ? | How is dihydrolipoamide dehydrogenase deficiency inherited? Dihydrolipoamide dehydrogenase (DLD) deficiency is inherited in an autosomal recessive manner. This means that a person must have a mutation in both copies of the responsible gene in each cell to be affected. The parents of an affected person usually each carry one mutated copy of the gene and are referred to as carriers. Carriers typically do not have any signs or symptoms of the condition. When two carriers of an autosomal recessive condition have children, each child has a 25% (1 in 4) risk to be affected, a 50% (1 in 2) risk to be a carrier like each of the parents, and a 25% to be unaffected and not be a carrier. | |
What are the treatments for Dihydrolipoamide dehydrogenase deficiency ? | How might dihydrolipoamide dehydrogenase deficiency be treated? There are currently no consensus recommendations for the management of dihydrolipoamide dehydrogenase (DLD) deficiency. Management can be hard because various metabolic pathways are affected and 3 enzyme complexes are involved. Deficiencies in enzyme pathways vary depending on the specific mutation(s) each affected person has. Unfortunately, the treatments that have been attempted in children with the early-onset neurologic form do not appear to significantly alter the course of the disease. Even with treatment, children often do not survive infancy or have varying degrees of chronic neurologic impairment if they survive the initial episode. Depending on individual enzyme complex deficiencies, treatment may involve certain dietary restrictions or certain diets; use of medical foods; and/or supplementation of specific amino acids or other substances. There is limited data for the chronic management of people with the primarily hepatic (liver-related) form of the disease. Management typically involves supportive therapy during times of acute liver injury or failure, and may include nutritional support; IV glucose for hypoglycemia; correction of metabolic acidosis; correction of coagulopathy; and avoidance of liver-toxic medications. More detailed information about the management of DLD deficiency can be viewed on the GeneReviews Web site. GeneReviews is intended for use by genetics professionals. Those not familiar with the principles discussed on the GeneReviews Web site are encouraged to speak with a genetics professional or other healthcare provider regarding information of interest. | |
What are the symptoms of Thyrotoxic periodic paralysis ? | What are the signs and symptoms of Thyrotoxic periodic paralysis? The Human Phenotype Ontology provides the following list of signs and symptoms for Thyrotoxic periodic paralysis. 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) Goiter - Heterogeneous - Hyperthyroidism - Hypokalemia - Muscle weakness - Palpitations - Periodic paralysis - Rhabdomyolysis - 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. | |
What is (are) Encephalitis lethargica ? | Encephalitis lethargica is a disease characterized by high fever, headache, double vision, delayed physical and mental response, extreme tiredness (lethargy), and sometimes coma. Patients may also experience abnormal eye movements, upper body weakness, muscule pain, tremors, neck rigidity, and behavioral changes including psychosis. A world-wide epidemic of encephalitis lethargica occurred from 1917 to 1928. The cause of this condition is unknown, and treatment depends on a person's symptoms. Levodopa and other antiparkinson drugs often produce dramatic responses. | |
What are the symptoms of Pfeiffer Mayer syndrome ? | What are the signs and symptoms of Pfeiffer Mayer syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Pfeiffer Mayer 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) Abnormal nasal morphology 90% Abnormality of the pinna 90% Cognitive impairment 90% Optic atrophy 90% Preaxial hand polydactyly 90% Short stature 90% Chorioretinal coloboma 50% Iris coloboma 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. | |
What is (are) Nephropathic cystinosis ? | Cystinosis is an inherited condition in which the body accumulates the amino acid cystine (a building block of proteins) within the cells. Excess cystine forms crystals that can build up and damage cells. These crystals can negatively affect many systems in the body, especially the kidneys and eyes. There are three distinct types of cystinosis: nephropathic cystinosis, intermediate cystinosis, and non-nephropathic or ocular cystinosis. All three types of cystinosis are caused by mutations in the CTNS gene and inherited in an autosomal recessive pattern.[1] | |
What are the symptoms of Nephropathic cystinosis ? | What are the signs and symptoms of Nephropathic cystinosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Nephropathic cystinosis. 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 - Autosomal recessive inheritance - Cerebral atrophy - Corneal crystals - Decreased plasma carnitine - Dehydration - Delayed puberty - Delayed skeletal maturation - Diabetes mellitus - Dysphagia - Elevated intracellular cystine - Episodic metabolic acidosis - Exocrine pancreatic insufficiency - Failure to thrive in infancy - Frontal bossing - Generalized aminoaciduria - Genu valgum - Glycosuria - Hepatomegaly - Hypohidrosis - Hyponatremia - Hypophosphatemic rickets - Hypopigmentation of hair - Hypopigmentation of the skin - Male infertility - Metaphyseal widening - Microscopic hematuria - Myopathy - Nephrolithiasis - Photophobia - Pigmentary retinopathy - Polydipsia - Polyuria - Primary hypothyroidism - Progressive neurologic deterioration - Proteinuria - Rachitic rosary - Recurrent corneal erosions - Reduced visual acuity - Renal Fanconi syndrome - Renal insufficiency - Retinal pigment epithelial mottling - Short stature - Skeletal muscle atrophy - Splenomegaly - Visual impairment - 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. | |
What are the symptoms of Maternal hyperphenylalaninemia ? | What are the signs and symptoms of Maternal hyperphenylalaninemia? The Human Phenotype Ontology provides the following list of signs and symptoms for Maternal hyperphenylalaninemia. 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) Aminoaciduria 90% Cognitive impairment 50% Aggressive behavior - Anxiety - Attention deficit hyperactivity disorder - Autosomal recessive inheritance - Blue irides - Cataract - Cerebral calcification - Dry skin - Eczema - Fair hair - Generalized hypopigmentation - Hyperphenylalaninemia - Hyperreflexia - Intellectual disability - Irritability - Maternal hyperphenylalaninemia - Microcephaly - Obsessive-compulsive behavior - Phenylpyruvic acidemia - Psychosis - Reduced phenylalanine hydroxylase activity - Scleroderma - Seizures - Self-mutilation - 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. | |
What are the symptoms of Medulloblastoma ? | What are the signs and symptoms of Medulloblastoma? The Human Phenotype Ontology provides the following list of signs and symptoms for Medulloblastoma. 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 - Medulloblastoma - 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. |
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