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What are the symptoms of Autoimmune hepatitis ? | What are the signs and symptoms of Autoimmune hepatitis? Symptoms of autoimmune hepatitis range from mild to severe. Fatigue is probably the most common symptom of autoimmune hepatitis. Other symptoms include: an enlarged liver jaundice itching skin rashes joint pain abdominal discomfort spider angiomas, or abnormal blood vessels, on the skin nausea vomiting loss of appetite dark urine pale or gray-colored stools People in advanced stages of the disease are more likely to have symptoms related to chronic liver disease, such as fluid in the abdomenalso called ascitesand mental confusion. Women may stop having menstrual periods. The Human Phenotype Ontology provides the following list of signs and symptoms for Autoimmune hepatitis. 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) Autoimmune antibody positivity - 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 Autoimmune hepatitis ? | What causes autoimmune hepatitis? Although the exact cause of autoimmune hepatitis is unknown, evidence suggests that liver injury in a patient with autoimmune hepatitis is the result of a cell-mediated immunologic attack. This autoimmune attack may be triggered by genetic factors, viral infections, or chemical agents. Autoimmune hepatitis sometimes occurs in relatives of people with autoimmune diseases, further suggesting a genetic cause. | |
How to diagnose Autoimmune hepatitis ? | How is autoimmune hepatitis diagnosed? The diagnosis of autoimmune hepatitis is typically made based on symptoms, blood tests, and a liver biopsy. | |
What are the treatments for Autoimmune hepatitis ? | How might autoimmune hepatitis be treated? Some people with mild forms of autoimmune hepatitis may not need to take medication. Doctors assess each patient individually to determine whether those with mild autoimmune hepatitis should undergo treatment. Treatment works best when autoimmune hepatitis is diagnosed early. With proper treatment, autoimmune hepatitis can usually be controlled. In fact, studies show that sustained response to treatment stops the disease from getting worse and may reverse some of the damage. The primary treatment is medicine to suppress, or slow down, an overactive immune system. Prednisone or other corticosteroids help reduce the inflammation. Azathioprine and mercaptopurine are drugs used to treat other autoimmune disorders, which have shown to help patients with autoimmune hepatitis as well. In about seven out of 10 people, the disease goes into remission within 3 years of starting treatment. Remission occurs when symptoms disappear and lab tests show improvement in liver function. Some people can eventually stop treatment, although many will see the disease return. People who stop treatment must carefully monitor their condition and promptly report any new symptoms to their doctor. Treatment with low doses of prednisone or azathioprine may be necessary on and off for years, if not for life. People who do not respond to standard immune therapy or who have severe side effects may benefit from other immunosuppressive agents such as mycophenylate mofetil, cyclosporine, or tacrolimus. People who progress to end-stage liver diseasealso called liver failureor cirrhosis may need a liver transplant. Transplantation has a 1-year survival rate of 90 percent and a 5-year survival rate of 70 to 80 percent. | |
What is (are) Best vitelliform macular dystrophy ? | Best vitelliform macular dystrophy (BVMD) is a slowly progressive form of macular degeneration. It usually begins in childhood or adolescence, but age of onset and severity of vision loss can vary. Affected people first have normal vision, followed by decreased central visual acuity and distorted vision (metamorphopsia). Peripheral vision is not affected. BVMD is usually inherited in an autosomal dominant manner, but autosomal recessive inheritance has been reported. The condition is typically caused by mutations in the BEST1 gene; in a few cases the cause is unknown. Treatment is symptomatic and involves the use of low vision aids. | |
What are the symptoms of Best vitelliform macular dystrophy ? | What are the signs and symptoms of Best vitelliform macular dystrophy? The Human Phenotype Ontology provides the following list of signs and symptoms for Best vitelliform macular 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) Abnormality of the macula 90% Visual impairment 90% Abnormality of color vision 50% Choroideremia 7.5% Visual field defect 7.5% Abnormal electroretinogram - Autosomal dominant inheritance - Cystoid macular degeneration - Macular dystrophy - Reduced visual acuity - 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 Best vitelliform macular dystrophy ? | What causes Best vitelliform macular dystrophy? Best vitelliform macular dystrophy (BVMD) is caused by changes (mutations) in the BEST1 gene. This gene gives the body instructions for making a protein called bestrophin. Bestrophin acts as a channel that controls the movement of chloride ions within the retina. It is thought that mutations in the BEST1 gene affect the shape of the channel and its ability to properly regulate the flow of chloride. However, it is unclear how exactly this relates to the specific features of BVMD. | |
Is Best vitelliform macular dystrophy inherited ? | How is Best vitelliform macular dystrophy inherited? Best vitelliform macular dystrophy (BVMD) is most commonly inherited in an autosomal dominant manner, although a few cases with autosomal recessive inheritance have been reported. In autosomal dominant inheritance, having one changed (mutated) copy of the responsible gene in each cell is enough to cause symptoms of the condition. When a person with an autosomal dominant condition has children, each child has a 50% (1 in 2) chance to inherit the mutated gene. Most people with BVMD have an affected parent, but some people have the condition as the result of a new mutation that occurred for the first time. Autosomal recessive inheritance 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 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 Best vitelliform macular dystrophy ? | How is Best vitelliform macular dystrophy diagnosed? Best vitelliform macular dystrophy (BVMD) may be diagnosed based on the findings on an exam of the fundus (the interior surface of the eye opposite the lens); an electrooculogram (EOG); and the family history. An eye exam may include other tests as well. A fundus exam may show a typical yellow yolk-like macular lesion. An EOG is usually abnormal in affected people, but occasionally, people with signs of BVMD and a mutation in the BEST1 gene have a normal EOG. The family history in affected people is often consistent with either autosomal dominant or autosomal recessive inheritance. Genetic testing may also be used to make a diagnosis of BVMD. A BEST1 mutation is detected in about 96% of affected people who have an affected family member. In people with no family history of BVMD, the mutation detection rate ranges between 50-70%. The exact type of genetic test ordered to confirm a diagnosis may depend on a person's ancestry, family history, and/or whether other eye disorders are also being considered. | |
What are the treatments for Best vitelliform macular dystrophy ? | How might Best vitelliform macular dystrophy be treated? There is no specific treatment for Best vitelliform macular dystrophy (BVMD) at this time. Low vision aids help affected people with significant loss of visual acuity. Laser photocoagulation, photodynamic therapy, and anti-VEGF (vascular endothelial growth factor) agents such as bevacizumab have shown limited success in treating some of the secondary features of BVMD such as choroidal neovascularization (when abnormal blood vessels grow under the macula and retina). | |
What are the symptoms of Arthrogryposis, distal, type 2E ? | What are the signs and symptoms of Arthrogryposis, distal, type 2E? The Human Phenotype Ontology provides the following list of signs and symptoms for Arthrogryposis, distal, type 2E. 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) Absent antihelix - Autosomal dominant inheritance - Distal arthrogryposis - Joint contracture of the hand - Joint contractures involving the joints of the feet - Microcephaly - Mild microcephaly - Narrow mouth - Talipes equinovarus - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
What are the symptoms of Pinheiro Freire-Maia Miranda syndrome ? | What are the signs and symptoms of Pinheiro Freire-Maia Miranda syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Pinheiro Freire-Maia Miranda 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 hair quantity 90% Abnormality of dental morphology 90% Abnormality of the eyelashes 90% Fine hair 90% Reduced number of teeth 90% Delayed eruption of teeth 50% Hyperlordosis 50% Increased number of teeth 50% Palmoplantar keratoderma 50% Scoliosis 50% Sparse lateral eyebrow 50% Abnormality of female internal genitalia 7.5% Abnormality of the hip bone 7.5% Adenoma sebaceum 7.5% Cafe-au-lait spot 7.5% Hypermetropia 7.5% The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
What are the symptoms of Spranger Schinzel Myers syndrome ? | What are the signs and symptoms of Spranger Schinzel Myers syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Spranger Schinzel Myers 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) Ablepharon - Absent eyelashes - Agenesis of corpus callosum - Autosomal recessive inheritance - Bifid uterus - Calcaneovalgus deformity - Camptodactyly - Cataract - Cerebellar hypoplasia - Choroid plexus cyst - Cleft palate - Cleft upper lip - Clinodactyly - Cryptorchidism - Dandy-Walker malformation - Decreased fetal movement - Finger syndactyly - Generalized edema - Hydranencephaly - Hypertelorism - Intrauterine growth retardation - Joint contracture of the hand - Lissencephaly - Macrotia - Microcephaly - Micromelia - Microphthalmia - Patent ductus arteriosus - Patent foramen ovale - Polyhydramnios - Proptosis - Pterygium - Pulmonary hypoplasia - Radial deviation of finger - Renal agenesis - Rocker bottom foot - Short neck - Short umbilical cord - Sloping forehead - Small placenta - Spina bifida - Stillbirth - Thick lower lip vermilion - Toe syndactyly - Transposition of the great arteries - Ventricular septal defect - Yellow subcutaneous tissue covered by thin, scaly skin - 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) Alpha-thalassemia x-linked intellectual disability syndrome ? | Alpha-thalassemia x-linked intellectual disability (ATRX) syndrome is a genetic condition that causes intellectual disability, muscle weakness (hypotonia), short height, a particular facial appearance, genital abnormalities, and possibly other symptoms. It is caused by mutations in the ATRX gene and is inherited in an x-linked way. Treatment includes regular visits to the doctor to monitor growth and intellectual development, early intervention and special education programs, and special formula to help with feeding and nutrition. | |
What are the symptoms of Alpha-thalassemia x-linked intellectual disability syndrome ? | What are the signs and symptoms of Alpha-thalassemia x-linked intellectual disability syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Alpha-thalassemia x-linked intellectual disability syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the fontanelles or cranial sutures 90% Cognitive impairment 90% Cryptorchidism 90% Hypertelorism 90% Malar flattening 90% Male pseudohermaphroditism 90% Microcephaly 90% Neurological speech impairment 90% Abnormality of the heme biosynthetic pathway 50% Abnormality of the tongue 50% Anteverted nares 50% Autism 50% Depressed nasal ridge 50% Epicanthus 50% Hypoplasia of penis 50% Muscular hypotonia 50% Seizures 50% Short stature 50% Talipes 50% Telecanthus 50% Thick lower lip vermilion 50% Abnormality of movement 7.5% Abnormality of the kidney 7.5% Abnormality of the teeth 7.5% Aganglionic megacolon 7.5% Aplasia/Hypoplasia of the corpus callosum 7.5% Brachydactyly syndrome 7.5% Cerebral cortical atrophy 7.5% Clinodactyly of the 5th finger 7.5% Constipation 7.5% Encephalitis 7.5% Feeding difficulties in infancy 7.5% Flexion contracture 7.5% Hemiplegia/hemiparesis 7.5% Limitation of joint mobility 7.5% Myopia 7.5% Nausea and vomiting 7.5% Optic atrophy 7.5% Recurrent urinary tract infections 7.5% Self-injurious behavior 7.5% Sensorineural hearing impairment 7.5% Visual impairment 7.5% Volvulus 7.5% Abnormality of metabolism/homeostasis - Absent frontal sinuses - Cerebral atrophy - Clinodactyly - Coxa valga - Depressed nasal bridge - Gastroesophageal reflux - Hemivertebrae - Hydronephrosis - Hypochromic microcytic anemia - Hypospadias - Infantile muscular hypotonia - Intellectual disability - Kyphoscoliosis - Low-set ears - Macroglossia - Micropenis - Microtia - Perimembranous ventricular septal defect - Phenotypic variability - Posteriorly rotated ears - Postnatal growth retardation - Protruding tongue - Radial deviation of finger - Reduced alpha/beta synthesis ratio - Renal agenesis - Shawl scrotum - Short nose - Spasticity - Talipes equinovarus - Tapered finger - Umbilical hernia - U-Shaped upper lip vermilion - Widely-spaced maxillary central incisors - X-linked dominant inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
Is Alpha-thalassemia x-linked intellectual disability syndrome inherited ? | How is alpha-thalassemia x-linked intellectual disability syndrome inherited? Alpha-thalassemia x-linked intellectual disability (ATRX) syndrome is caused by a mutation in the ATRX gene and is inherited in an x-linked way. The chance that a relative may have ATRX syndrome depends on whether the mutation in the first affected family member was inherited from his mother or happened by chance (a de novo mutation). If the mutation happened by chance, there is very little risk that other relatives could be affected by this condition. If the mutation was inherited from his mother, each of his mother's sisters has a 50% of being a carrier of ATRX syndrome. If a woman is a carrier of an ATRX mutation, she has a 25% chance of having a son with the mutation who is affected with ATRX syndrome; a 25% chance of having a son who does not have the mutation and does not have ATRX syndrome; a 25% chance of having a daughter with the mutation who is a carrier of ATRX syndrome; and a 25% chance of having a daughter who does not have the mutation and is not a carrier. | |
What is (are) Ellis-Van Creveld syndrome ? | Ellis-Van Creveld syndrome is an inherited condition that affects bone growth. Affected people generally have short stature; short arms and legs (especially the forearm and lower leg); and a narrow chest with short ribs. Other signs and symptoms may include polydactyly; missing and/or malformed nails; dental abnormalities; and congenital heart defects. More than half of people affected by Ellis-van Creveld syndrome have changes (mutations) in the EVC or EVC2 genes; the cause of the remaining cases is unknown. The condition is inherited in an autosomal recessive manner. Treatment is based on the signs and symptoms present in each person. | |
What are the symptoms of Ellis-Van Creveld syndrome ? | What are the signs and symptoms of Ellis-Van Creveld syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Ellis-Van Creveld syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the fingernails 90% Abnormality of the heart valves 90% Atria septal defect 90% Complete atrioventricular canal defect 90% Genu valgum 90% Hypoplastic toenails 90% Limb undergrowth 90% Narrow chest 90% Short distal phalanx of finger 90% Short thorax 90% Aplasia/Hypoplasia of the lungs 50% Cryptorchidism 50% Intrauterine growth retardation 50% Microdontia 50% Situs inversus totalis 50% Strabismus 50% Ventricular septal defect 50% Abnormal hair quantity 7.5% Abnormality of bone marrow cell morphology 7.5% Abnormality of female internal genitalia 7.5% Acute leukemia 7.5% Cognitive impairment 7.5% Cubitus valgus 7.5% Delayed eruption of teeth 7.5% Delayed skeletal maturation 7.5% Emphysema 7.5% Intellectual disability 7.5% Renal hypoplasia/aplasia 7.5% Synostosis of carpal bones 7.5% Thin vermilion border 7.5% Abnormality of the alveolar ridges - Acetabular spurs - Autosomal recessive inheritance - Capitate-hamate fusion - Cleft upper lip - Common atrium - Cone-shaped epiphyses of phalanges 2 to 5 - Dandy-Walker malformation - Ectodermal dysplasia - Epispadias - Horizontal ribs - Hypodontia - Hypoplastic iliac wing - Hypospadias - Nail dysplasia - Natal tooth - Neonatal short-limb short stature - Pectus carinatum - Postaxial foot polydactyly - Postaxial hand polydactyly - Short long bone - Short ribs - Talipes equinovarus - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
What is (are) Brachydactyly type B ? | Brachydactyly type B is a very rare genetic condition characterized by disproportionately short fingers and toes. The ends of the second and fifth fingers are usually underdeveloped with complete absence of the fingernails. The thumb bones are always intact but are frequently flattened and/or split. The feet are usually similarly affected, but less severely. Other features that may be present include webbed fingers (syndactyly) and fusion of the joints (symphalangism) and bones in the hands and feet. Only a few cases have been reported in the literature. This condition is caused by mutations in the ROR2 gene. Most cases have been shown to be inherited in an autosomal dominant fashion. | |
What are the symptoms of Brachydactyly type B ? | What are the signs and symptoms of Brachydactyly type B? The Human Phenotype Ontology provides the following list of signs and symptoms for Brachydactyly type B. 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% Anonychia 90% Aplasia/Hypoplasia of the distal phalanges of the toes 90% Short distal phalanx of finger 90% Short toe 90% Abnormality of thumb phalanx 7.5% Preaxial foot polydactyly 7.5% Symphalangism affecting the phalanges of the hand 7.5% Synostosis of carpal bones 7.5% Cutaneous finger syndactyly 5% Abnormality of the foot - Aplasia/Hypoplasia of the distal phalanges of the hand - Autosomal dominant inheritance - Broad thumb - Camptodactyly - Delayed cranial suture closure - Delayed eruption of permanent teeth - Hemivertebrae - Hypoplastic sacrum - Joint contracture of the hand - Micropenis - Short long bone - Short middle phalanx of finger - Syndactyly - Thoracolumbar scoliosis - Type B brachydactyly - Ventricular septal defect - Vertebral fusion - Wide anterior fontanel - 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 Brachydactyly type B inherited ? | How is brachydactyly type B inherited? Brachydactyly type B is caused by mutations in the ROR2 gene. It is inherited in an autosomal dominant fashion, which means one copy of the altered gene in each cell is sufficient to cause the disorder. Individuals with brachydactyly type B have a 50% chance of passing on this condition to their children. | |
What is (are) Juvenile amyotrophic lateral sclerosis ? | Juvenile amyotrophic lateral sclerosis (ALS) is a type of motor neuron disease which leads to problems with muscle control and movement. Signs and symptoms of juvenile ALS tend to present by age 25 years or younger. Unlike other types of ALS, juvenile ALS is not rapidly progressive. People with juvenile ALS can have a normal life expectancy. Juvenile ALS is often genetic and may be inherited in an autosomal dominant or autosomal recessive fashion. | |
What are the symptoms of Juvenile amyotrophic lateral sclerosis ? | What are the signs and symptoms of juvenile amyotrophic lateral sclerosis? Signs and symptoms of juvenile ALS vary but include slowly to very slowly progressive muscle weakness, increased muscle tone, Babinski reflex, muscle spasm (clonus), exaggerated reflexes, muscle wasting, and muscle twitching. Juvenile ALS usually does not affect thinking or mental processing, nor does it tend to cause sensory dysfunction (e.g., numbness or tingling). As the condition progresses muscle involvement can be severe. Some people with juvenile ALS, eventually experience muscle weakness in the face and throat. Some have experienced emotional liability (involuntary crying or laughing) and/or respiratory weakness.[133] | |
What causes Juvenile amyotrophic lateral sclerosis ? | What causes juvenile amyotrophic lateral sclerosis? Juvenile amyotrophic lateral sclerosis (ALS) is often genetic and may be caused by mutations in the ALS2 or SETX genes. In some cases the underlying gene abnormality cannot be determined. Juvenile ALS may be inherited in an autosomal dominant (as in ALS type 4) or autosomal recessive (as in ALS type 2) fashion. | |
What are the treatments for Juvenile amyotrophic lateral sclerosis ? | How might juvenile amyotrophic lateral sclerosis be treated? Treatments and therapies are available to relieve symptoms and improve the quality of life of people with juvenile ALS. Medications, such as those that reduce fatigue and ease muscle cramps are available. Physical therapy and special equipment can be helpful. Multidisciplinary teams of health care professionals such as physicians; pharmacists; physical, occupational, and speech therapists; nutritionists; and social workers can help to develop personalized treatment plans. While the Food and Drug Administration (FDA) has approved riluzole (Rilutek) for treatment of ALS, we found limited information regarding its use for juvenile ALS. We recommend that you discuss any questions regarding the risk/benefits of this drug with your healthcare provider. | |
What are the symptoms of Corneal dystrophy of Bowman layer type 1 ? | What are the signs and symptoms of Corneal dystrophy of Bowman layer type 1? The Human Phenotype Ontology provides the following list of signs and symptoms for Corneal dystrophy of Bowman layer type 1. 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 - Corneal dystrophy - Corneal erosion - Opacification of the corneal stroma - Photophobia - Strabismus - 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 Quinquaud's decalvans folliculitis ? | What are the signs and symptoms of Quinquaud's decalvans folliculitis? The Human Phenotype Ontology provides the following list of signs and symptoms for Quinquaud's decalvans folliculitis. 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) Alopecia 90% Pustule 90% Skin ulcer 90% Atypical scarring of 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 is (are) Milroy disease ? | Milroy disease is a lymphatic disease that causes swelling (lymphedema) in the lower legs and feet. Lymphedema is usually present at birth or develops in infancy. It typically occurs on both sides of the body and can worsen over time. Other symptoms may include accumulation of fluid in the scrotum in males (hydrocele), upslanting toenails, deep creases in the toes, wart-like growths, prominent leg veins, and/or cellulitis. Milroy disease is sometimes caused by changes (mutations) in the FLT4 gene and is inherited in an autosomal dominant manner. In many cases, the cause remains unknown. Treatment may include lymphedema therapy to improve function and alleviate symptoms. | |
What are the symptoms of Milroy disease ? | What are the signs and symptoms of Milroy disease? The most common symptom of Milroy disease is build-up of fluids (lymphedema) in the lower limbs, which is usually present from birth or before birth. However, the degree and distribution of swelling varies among affected people. It sometimes progresses, but may improve in some cases. Other signs and symptoms may include hydrocele and/or urethral abnormalities in males; prominent veins; upslanting toenails; papillomatosis (development of wart-like growths); and cellulitis. Cellulitis may cause additional swelling. The Human Phenotype Ontology provides the following list of signs and symptoms for Milroy disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the amniotic fluid - Abnormality of the nail - Autosomal dominant inheritance - Congenital onset - Hemangioma - Hydrocele testis - Hyperkeratosis over edematous areas - Hypoplasia of lymphatic vessels - Nonimmune hydrops fetalis - Predominantly lower limb lymphedema - 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 Milroy disease inherited ? | How is Milroy disease inherited? Milroy disease is inherited in an autosomal dominant manner. This means that having one changed (mutated) copy of the responsible gene in each cell is enough to cause symptoms of the condition. When a person with an autosomal dominant condition has children, each child has a 50% (1 in 2) chance to inherit the mutated copy of the gene. Most people with Milroy disease have an affected parent, but some cases are due to new mutations that occur for the first time in the affected person. About 10-15% of people with a mutation in the responsible gene do not develop features of the condition. This phenomenon is called reduced penetrance. | |
How to diagnose Milroy disease ? | Is genetic testing available for Milroy disease? Yes. The Genetic Testing Registry (GTR) provides information about the labs that offer genetic testing for Milroy disease. The intended audience for the GTR is health care providers and researchers. People with questions about genetic testing should speak with a health care provider or genetics professional. If a mutation in the responsible gene has been identified in a family, genetic testing for at-risk relatives may identify those who may benefit from treatment early in the disease course. Prenatal testing for pregnancies at increased risk may also be available. | |
What are the treatments for Milroy disease ? | How might Milroy disease be treated? There is currently no cure for Milroy disease. Management is typically conservative and usually successful in most people. Management of lymphedema should be guided by a lymphedema therapist. Some improvement is usually possible with the use of properly fitted compression hosiery or bandaging and well fitting, supportive shoes. Good skin care is essential. These measures may improve the cosmetic appearance of the affected areas, decrease their size, and reduce the risk of complications. Decongestive physiotherapy, which combines compression bandaging, manual lymphatic drainage (a specialized massage technique), exercise, breathing exercises, dietary measures and skin care, has become the standard of care for primary lymphedema. People with recurrent cellulitis may benefit from prophylactic antibiotics. Surgical intervention is considered a last option when other medical management fails. When possible, people with Milroy disease should avoid: wounds to swollen areas (because of their reduced resistance to infection) long periods of immobility prolonged standing elevation of the affected limb certain medications (particularly calcium channel-blocking drugs that can cause increased leg swelling in some people) | |
What is (are) Merkel cell carcinoma ? | Merkel cell carcinoma (MCC) is a rare type of skin cancer that usually appears as a single, painless, lump on sun-exposed skin. It is typically red or violet in color. It is considered fast-growing and can spread quickly to surrounding tissues, nearby lymph nodes, or more distant parts of the body. Merkel cell polyomavirus has been detected in about 80% of the tumors tested. It is thought that this virus can cause somatic mutations leading to MCC when the immune system is weakened. Other risk factors for developing MCC include ultraviolet radiation and being over 50 years of age. Treatment should begin early and depends on the location and size of the cancer, and the extent to which it has spread. | |
What causes Merkel cell carcinoma ? | What causes Merkel cell carcinoma? The exact underlying cause of Merkel cell carcinoma (MCC) is unknown, but several risk factors have been associated with the development of MCC. Having one or more risk factors does not mean that a person will develop MCC; most individuals with risk factors will not develop MCC. Risk factors include: -being over 50 years of age -having fair skin -having a history of extensive sun exposure (natural or artificial) -having chronic immune suppression, such as after organ transplantation or having HIV Researchers have also found that a virus called Merkel cell polyomavirus (MCPyV) is frequently involved in the development of MCC. MCPyV is found in about 80% of tumor cells tested. This virus is thought to alter the DNA in such a way that influences tumor development. | |
Is Merkel cell carcinoma inherited ? | Is Merkel cell carcinoma inherited? To our knowledge, there currently is no evidence that Merkel cell carcinoma (MCC) is inherited. While DNA changes (mutations) found in the cells of MCC tumors can lead to MCC, these types of mutations are not inherited from a person's parents. They are referred to as somatic mutations and occur during a person's lifetime, often as random events. Sometimes, something in the environment can lead to a somatic mutation, such as long-term sun exposure or infection with the Merkel cell polyomavirus. These are known risk factors for developing MCC. | |
What is (are) 5q14.3 microdeletion syndrome ? | 5q14.3 microdeletion syndrome is characterized by severe intellectual disability, absent speech, stereotypic movements and epilepsy. Unusual facial features include high broad forehead with variable small chin, short nose with anteverted nares (nostrils that open to the front rather than downward), large open mouth, upslanted palpebral fissures (outside corners of the eyes that point downward), and prominent eyebrows. The condition is caused by mutations affecting the MEF2C gene and deletions in the q14.3 region of chromosome 5. | |
What are the symptoms of 5q14.3 microdeletion syndrome ? | What are the signs and symptoms of 5q14.3 microdeletion syndrome ? The Human Phenotype Ontology provides the following list of signs and symptoms for 5q14.3 microdeletion 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) Autism 90% Broad forehead 90% Cognitive impairment 90% High forehead 90% Muscular hypotonia 90% Neurological speech impairment 90% Seizures 90% Aplasia/Hypoplasia of the corpus callosum 50% Short nose 50% Short philtrum 50% Stereotypic behavior 50% Upslanted palpebral fissure 50% Ventriculomegaly 50% Anteverted nares 7.5% Aplasia/Hypoplasia of the cerebellum 7.5% Cerebral cortical atrophy 7.5% Deeply set eye 7.5% Open mouth 7.5% Optic atrophy 7.5% Strabismus 7.5% Thick eyebrow 7.5% Toe syndactyly 7.5% Abnormality of the periventricular white matter 5% Epileptic encephalopathy 5% Depressed nasal bridge - Downturned corners of mouth - Hypertelorism - Inability to walk - Intellectual disability, severe - Low-set ears - Motor delay - Poor eye contact - Short chin - 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 HurlerScheie syndrome ? | What are the signs and symptoms of HurlerScheie syndrome ? The Human Phenotype Ontology provides the following list of signs and symptoms for HurlerScheie 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 form of the vertebral bodies 90% Abnormality of the heart valves 90% Abnormality of the tonsils 90% Coarse facial features 90% Hepatomegaly 90% Hernia 90% Limitation of joint mobility 90% Opacification of the corneal stroma 90% Short stature 90% Sinusitis 90% Skeletal dysplasia 90% Splenomegaly 90% Abnormal pyramidal signs 50% Decreased nerve conduction velocity 50% Sensorineural hearing impairment 50% Spinal canal stenosis 50% Hypertrichosis 7.5% Hypertrophic cardiomyopathy 7.5% Aortic regurgitation - Autosomal recessive inheritance - Corneal opacity - Depressed nasal bridge - Dysostosis multiplex - Hirsutism - Joint stiffness - Kyphosis - Mitral regurgitation - Obstructive sleep apnea - Pulmonary hypertension - Recurrent respiratory infections - Scoliosis - Thick vermilion border - Tracheal stenosis - Umbilical hernia - 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) Lafora disease ? | Lafora disease is an inherited, severe form of progressive myoclonus epilepsy. The condition most commonly begins with epileptic seizures in late childhood or adolescence. Other signs and symptoms include difficulty walking, muscle spasms (myoclonus) and dementia. Affected people also experience rapid cognitive deterioration that begins around the same time as the seizures. The condition is often fatal within 10 years of onset. Most cases are caused by changes (mutations) in either the EPM2A gene or the NHLRC1 gene and are inherited in an autosomal recessive manner. Treatment is based on the signs and symptoms present in each person. | |
What are the symptoms of Lafora disease ? | What are the signs and symptoms of Lafora disease? The signs and symptoms of Lafora disease generally appear during late childhood or adolescence. Prior to the onset of symptoms, affected children appear to have normal development although some may have isolated febrile or nonfebrile convulsions in infancy or early childhood. The most common feature of Lafora disease is recurrent seizures. Several different types of seizures have been reported including generalized tonic-clonic seizures, occipital seizures (which can cause temporary blindness and visual hallucinations) and myoclonic seizures. These seizures are considered "progressive" because they generally become worse and more difficult to treat over time. With the onset of seizures, people with Lafora disease often begin showing signs of cognitive decline. This may include behavioral changes, depression, confusion, ataxia (difficulty controlling muscles), dysarthria, and eventually, dementia. By the mid-twenties, most affected people lose the ability to perform the activities of daily living; have continuous myoclonus; and require tube feeding and comprehensive care. The Human Phenotype Ontology provides the following list of signs and symptoms for Lafora disease. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of metabolism/homeostasis - Absence seizures - Apraxia - Autosomal recessive inheritance - Bilateral convulsive seizures - Cutaneous photosensitivity - Dementia - Gait disturbance - Generalized myoclonic seizures - Generalized tonic-clonic seizures - Hepatic failure - Heterogeneous - Myoclonus - Progressive neurologic deterioration - Psychosis - Rapidly progressive - Visual auras - Visual hallucinations - Visual loss - 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 Lafora disease ? | What causes Lafora disease? Most cases of Lafora disease are caused by changes (mutations) in either the EPM2A gene or the NHLRC1 gene. These genes encode proteins that play a critical role in the survival of nerve cells (neurons) in the brain. Although the proteins are thought to have many functions in the body, one important role is to help regulate the production of a complex sugar called glycogen (an important source of stored energy in the body). Mutations in the EPM2A gene or the NHLRC1 gene interfere with the production of functional proteins, leading to the formation of Lafora bodies (clumps of abnormal glycogen that cannot be broken down and used for fuel) within cells. A build up of Lafora bodies appears to be especially toxic to the cells of the nervous system and leads to the signs and symptoms of Lafora disease. | |
Is Lafora disease inherited ? | Is Lafora disease inherited? Lafora disease is 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 Lafora disease ? | How is Lafora disease diagnosed? A diagnosis of Lafora disease is often suspected based on the presence of characteristic signs and symptoms. Additional testing can then be ordered to confirm the diagnosis and rule out other conditions that may cause similar features. For example, a skin biopsy may be performed to detect "Lafora bodies" (clumps of abnormal glycogen that cannot be broken down and used for fuel) which are found in most people with the condition. Genetic testing for changes (mutations) in either the EPM2A gene or the NHLRC1 gene may be used to confirm the diagnosis in some cases. An EEG and an MRI of the brain are generally recommended in all people with recurrent seizures and are useful in investigating other conditions in the differential diagnosis. GeneReview's Web site offers more specific information regarding the diagnosis of Lafora disease. Please click on the link to access this resource. | |
What are the treatments for Lafora disease ? | How might Lafora disease be treated? Unfortunately, there is currently no cure for Lafora disease or way to slow the progression of the condition. Treatment is based on the signs and symptoms present in each person. For example, certain medications may be recommended to managed generalized seizures. In the advanced stages of the condition, a gastrostomy tube may be placed for feeding. Drugs that are known to worsen myoclonus (i.e. phenytoin) are generally avoided. GeneReview's Web site offers more specific information regarding the treatment and management of Lafora disease. Please click on the link to access this resource. | |
What are the symptoms of Spinocerebellar ataxia 40 ? | What are the signs and symptoms of Spinocerebellar ataxia 40? The Human Phenotype Ontology provides the following list of signs and symptoms for Spinocerebellar ataxia 40. 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) Broad-based gait - Dysarthria - Dysdiadochokinesis - Hyperreflexia - Intention tremor - Pontocerebellar atrophy - Spastic paraparesis - Unsteady 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 is (are) 2q37 deletion syndrome ? | 2q37 deletion syndrome is a rare chromosome condition that can affect many parts of the body. Approximately 100 cases have been reported worldwide. This condition is characterized by weak muscle tone (hypotonia) in infancy, mild to severe intellectual disability and developmental delay, behavioral problems, characteristic facial features, and other physical abnormalities. 2q37 deletion syndrome is caused by a deletion of the genetic material from a specific region in the long (q) arm of chromosome 2. Most cases are not inherited. | |
What are the symptoms of 2q37 deletion syndrome ? | What are the signs and symptoms of 2q37 deletion syndrome? Most babies with 2q37 deletion syndrome are born with hypotonia, which usually improves with age. About 25 percent of those with this condition have autism, a developmental condition that affects communication and social interaction. The characteristic facial features include a prominent forehead, highly arched eyebrows, deep-set eyes, a flat nasal bridge, a thin upper lip, and minor ear abnormalities. Other features can include short stature, obesity, unusually short fingers and toes (brachymetaphalangy), sparse hair, heart defects, seizures, and an inflammatory skin disorder called eczema. A few people with 2q37 deletion syndrome have a rare form of kidney cancer called Wilms tumor. Some affected individuals can also have malformations of the brain, gastrointestinal system, kidneys, and/or genitalia. Unique is a source of information and support to families and individuals affected by rare chromosome disorders. On their Web site, they have a pamphlet that provides additional information on the signs and symptoms of 2q37 deletion syndrome. Click on the link below to view this information. http://www.rarechromo.org/information/Chromosome%20%202/2q37%20deletions%20FTNW.pdf The Human Phenotype Ontology provides the following list of signs and symptoms for 2q37 deletion 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) Cognitive impairment 90% Malar flattening 90% Muscular hypotonia 90% Round face 90% Abnormal hair quantity 50% Abnormality of the metacarpal bones 50% Abnormality of the palate 50% Anteverted nares 50% Aplasia/Hypoplasia of the eyebrow 50% Brachydactyly syndrome 50% Broad columella 50% Clinodactyly of the 5th finger 50% Deeply set eye 50% Depressed nasal bridge 50% Downturned corners of mouth 50% Eczema 50% Finger syndactyly 50% Frontal bossing 50% Highly arched eyebrow 50% Joint hypermobility 50% Microcephaly 50% Obesity 50% Seizures 50% Short foot 50% Short palm 50% Short stature 50% Single transverse palmar crease 50% Supernumerary nipple 50% Thin vermilion border 50% Toe syndactyly 50% Umbilical hernia 50% Underdeveloped nasal alae 50% Upslanted palpebral fissure 50% Abnormality of the aorta 7.5% Attention deficit hyperactivity disorder 7.5% Autism 7.5% Conductive hearing impairment 7.5% Congenital diaphragmatic hernia 7.5% Laryngomalacia 7.5% Macrocephaly 7.5% Multicystic kidney dysplasia 7.5% Nephroblastoma (Wilms tumor) 7.5% Obsessive-compulsive behavior 7.5% Pyloric stenosis 7.5% Short neck 7.5% Sleep disturbance 7.5% Stereotypic behavior 7.5% Tracheomalacia 7.5% Arrhythmia 5% Sensorineural hearing impairment 5% Subaortic stenosis 5% Aggressive behavior - Brachycephaly - Broad face - Broad nasal tip - Congenital onset - Hyperactivity - Hypoplasia of midface - Hyporeflexia - Intellectual disability - Pain insensitivity - Self-injurious behavior - Short metacarpal - Short metatarsal - Short phalanx of finger - Short toe - Somatic mutation - 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 2q37 deletion syndrome ? | What causes 2q37 deletion syndrome? 2q37 deletion syndrome is caused by a deletion of genetic material from a specific region in the long (q) arm of chromosome 2. The deletion occurs near the end of the chromosome at a location designated 2q37. The size of the deletion varies among affected individuals. The signs and symptoms of this disorder are probably related to the loss of multiple genes in this region. | |
Is 2q37 deletion syndrome inherited ? | How is 2q37 deletion syndrome inherited? Can it be a hidden trait? Most cases of 2q37 deletion syndrome are not inherited. They result from a chromosomal deletion that occurs as a random event during the formation of reproductive cells (eggs or sperm) or in early fetal development. Affected people typically have no history of the disorder in their family. Rarely, affected individuals inherit a copy of chromosome 2 with a deleted segment from an unaffected parent. In these cases, one of the parents carries a chromosomal rearrangement between chromosome 2 and another chromosome. This rearrangement is called a balanced translocation. No genetic material is gained or lost in a balanced translocation, so these chromosomal changes usually do not cause any health problems. However, translocations can become unbalanced as they are passed to the next generation. Children who inherit an unbalanced translocation can have a chromosomal rearrangement with extra or missing genetic material. Some individuals with 2q37 deletion syndrome inherit an unbalanced translocation that deletes genetic material near the end of the long arm of chromosome 2, which results in birth defects and other health problems characteristic of this disorder. | |
What is (are) FG syndrome ? | FG syndrome (FGS) is a genetic condition that affects many parts of the body and occurs almost exclusively in males. "FG" represents the surname initials of the first individuals diagnosed with the disorder. People with FG syndrome frequently have intellectual disability ranging from mild to severe, hypotonia, constipation and/or anal anomalies, a distinctive facial appearance, broad thumbs and great toes, a large head compared to body size (relative macrocephaly), and abnormalities of the corpus callosum. Medical problems including heart defects, seizures, undescended testicle, and an inguinal hernia have also been reported in some affected individuals. Researchers have identified five regions of the X chromosome that are linked to FG syndrome in affected families. Mutations in the MED12 gene appears to be the most common cause of this disorder, leading to FG syndrome 1. Other genes involved with FG syndrome include FLNA (FGS2), CASK (FGS4), UPF3B (FGS6), and BRWD3 (FGS7). FGS is inherited in an X-linked recessive pattern. Individualized early intervention and educational services are important so that each child can reach their fullest potential. | |
What are the symptoms of FG syndrome ? | What are the signs and symptoms of FG syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for FG 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) Aplasia/Hypoplasia of the corpus callosum 90% Behavioral abnormality 90% Broad forehead 90% Cognitive impairment 90% High forehead 90% Low-set, posteriorly rotated ears 90% Muscular hypotonia 90% Abnormality of the palate 50% Brachydactyly syndrome 50% Clinodactyly of the 5th finger 50% Cryptorchidism 50% EEG abnormality 50% Epicanthus 50% Fine hair 50% Mask-like facies 50% Open mouth 50% Seizures 50% Strabismus 50% Abnormality of the intestine 7.5% Hernia of the abdominal wall 7.5% Hypertonia 7.5% Ptosis 7.5% Single transverse palmar crease 7.5% Sensorineural hearing impairment 4/6 Feeding difficulties in infancy 5/8 Seizures 5/8 Prominent forehead 3/8 Scoliosis 2/8 Abnormal heart morphology - Abnormality of the nasopharynx - Abnormality of the sternum - Anal atresia - Anal stenosis - Anteriorly placed anus - Attention deficit hyperactivity disorder - Broad hallux - Broad thumb - Camptodactyly - Choanal atresia - Cleft palate - Cleft upper lip - Clinodactyly - Constipation - Delayed closure of the anterior fontanelle - Delayed speech and language development - Dental crowding - Facial wrinkling - Frontal bossing - Frontal upsweep of hair - Heterotopia - High pitched voice - Hydrocephalus - Hypertelorism - Hypospadias - Inguinal hernia - Intellectual disability - Intestinal malrotation - Joint contracture of the hand - Joint swelling onset late infancy - Large forehead - Long philtrum - Lumbar hyperlordosis - Microtia, first degree - Motor delay - Multiple joint contractures - Narrow palate - Neonatal hypotonia - Partial agenesis of the corpus callosum - Plagiocephaly - Postnatal macrocephaly - Prominent fingertip pads - Prominent nose - Pyloric stenosis - Radial deviation of finger - Sacral dimple - Short neck - Short stature - Skin tags - Sparse hair - Split hand - Syndactyly - Thick lower lip vermilion - Umbilical hernia - Underdeveloped superior crus of antihelix - Wide anterior fontanel - Wide mouth - Wide nasal bridge - X-linked inheritance - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
What are the treatments for FG syndrome ? | How might FG syndrome be treated? Treatment is aimed at addressing the individual symptoms present in each case. This often involves care by a team of providers which may include pediatricians, neurologists, cardiologists, surgeons, gastroenterologists, and psychologists. Early intervention and special education services should be initiated as soon as possible so that each child can reach his fullest potential. GeneReviews provides a detailed list of management strategies. | |
What is (are) Barraquer-Simons syndrome ? | Barraquer-Simons syndrome, or acquired partial lipodystrophy, is characterized by the loss of fat from the face, neck, shoulders, arms, forearms, chest and abdomen. Occasionally the groin or thighs are also affected. Onset usually begins in childhood following a viral illness. It affects females more often than males. The fat loss usually has a 18 month course, but can come and go over the course of several years. Following puberty, affected women may experience a disproportionate accumulation of fat in the hips and lower limbs. Around 1 in 5 people with this syndrome develop membranoproliferative glomerulonephritis. This kidney condition usually develops more than 10 years after the lipodystrophy's onset. Autoimmune disorders may also occur in association with this syndrome. | |
What are the symptoms of Barraquer-Simons syndrome ? | What are the signs and symptoms of Barraquer-Simons syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Barraquer-Simons 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) Lipoatrophy 90% Abnormality of complement system 50% Autoimmunity 50% Cognitive impairment 50% Glomerulopathy 50% Hearing impairment 50% Hematuria 50% Lymphocytosis 50% Myopathy 50% Prematurely aged appearance 50% Proteinuria 50% Seizures 50% Arthralgia 7.5% Hepatic steatosis 7.5% Hypertrichosis 7.5% Insulin resistance 7.5% Abnormality of lipid metabolism - Autosomal dominant inheritance - Decreased serum complement C3 - Diabetes mellitus - Hirsutism - Juvenile onset - Loss of subcutaneous adipose tissue from upper limbs - Loss of truncal subcutaneous adipose tissue - Membranoproliferative glomerulonephritis - Nephrotic syndrome - Phenotypic variability - Polycystic ovaries - Progressive loss of facial adipose tissue - Recurrent infections - Sporadic - 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 Barraquer-Simons syndrome ? | How might Barraquer-Simons syndrome be treated? Surgery may be used to improve a person's appearance, but is not needed for medical reasons. Facial reconstruction techniques may be used with varying success. These techniques may include transplantation of fat tissue, silicone implants, movement of facial muscles, or other techniques. No specific diet is recommended for people with Barraquer-Simons syndrome and weight gain should be avoided. Regular exercise is recommended to improve a person's metabolic status. If a person with Barraquer-Simons syndrome has kidney problems, then they may also need to be managed. Treatment may involving a special diet or medications. Dialysis or a kidney transplant may be needed if the condition progresses to kidney failure. | |
What are the symptoms of Abruzzo Erickson syndrome ? | What are the signs and symptoms of Abruzzo Erickson syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Abruzzo Erickson 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) Cleft palate 90% Displacement of the external urethral meatus 90% Hypoplasia of the zygomatic bone 90% Macrotia 90% Malar flattening 90% Chorioretinal coloboma 50% Iris coloboma 50% Radioulnar synostosis 50% Sensorineural hearing impairment 50% Short stature 50% Ulnar deviation of finger 50% Abnormal localization of kidney 7.5% Abnormality of dental morphology 7.5% Atria septal defect 7.5% Brachydactyly syndrome 7.5% Chin dimple 7.5% Conductive hearing impairment 7.5% Cryptorchidism 7.5% Epicanthus 7.5% Microcornea 7.5% Short toe 7.5% Toe syndactyly 7.5% Coloboma - Hearing impairment - Hypospadias - Protruding ear - 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 is (are) Adenocarcinoma of the appendix ? | Cancer of the appendix is very rare and is typically found incidentally during appendectomies, in about 1% of the cases. According to a report published by the National Cancer Institute, using the Surveillance, Epidemiology, and End Results (SEER) database, appendix cancer account for about 0.4% of gastrointestinal tumors. There are several subytpes. The most common is the carcinoid type (66% of the total), with cyst-adenocarcinoma accounting for 20% and adenocarcinoma accounting for 10%. Then there are the rare forms of cancers which include adenocarcinoid, signet ring, non-Hodgkins lymphoma, ganglioneuroma, and pheochromocytoma. Benign primary tumors are mainly mucinous epithelial neoplasms, also called adenomas, cystadenoma, and benign neoplastic mucocele. Adenocarcinoma of the appendix is a epithelial cancer of the appendix. The term 'epithelium' refers to cells that line hollow organs and glands and those that make up the outer surface of the body. Epithelial cells help to protect or enclose organs. Some produce mucus or other secretions. Types of adenocarcinoma of the appendix include mucinous adenocarcinoma, non-mucinous adenocarcinoma, and signet cell carcinoma of appendix (which is the rarer involving only 4% of all the subtypes of appendix cancer). | |
What are the symptoms of Adenocarcinoma of the appendix ? | What are the symptoms of adenocarcinoma of the appendix? The most common clinical symptom is acute appendicitis. Other symptoms include a palpable abdominal mass, ascites (fluid buildup), peritonitis (inflammation of the membrane lining the abdominal cavity) due to a perforated appendix, and non-specific gastrointestinal or genitourinary symptoms such as bloating, vague abdominal pain, and tenderness. | |
How to diagnose Adenocarcinoma of the appendix ? | How might adenocarcinoma of the appendix be diagnosed? Adenocarcinoma of the appendix may be identified along with acute appendicitis. Mucinous adenocarcinomas may also be found incidentally as a right sided cystic mass on an imaging study. | |
What is (are) Potassium aggravated myotonia ? | Potassium aggravated myotonia is a group of diseases that causes tensing and stiffness (myotonia) of skeletal muscles, which are the muscles used for movement. The three types of potassium-aggravated myotonia include myotonia fluctuans, myotonia permanens, and acetazolamide-sensitive myotonia. Potassium aggravated myotonia is different from other types of myotonia because symptoms get worse when an affected individual eats food that is rich in potassium. Symptoms usually develop during childhood and vary, ranging from infrequent mild episodes to long periods of severe disease. Potassium aggravated myotonia is an inherited condition that is caused by changes (mutations) in the SCN4A gene. Treatment begins with avoiding foods that contain large amounts of potassium; other treatments may include physical therapy (stretching or massages to help relax muscles) or certain medications (such as mexiletine, carbamazapine, or acetazolamide). | |
What are the symptoms of Potassium aggravated myotonia ? | What are the signs and symptoms of Potassium aggravated myotonia? The Human Phenotype Ontology provides the following list of signs and symptoms for Potassium aggravated myotonia. 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) EMG abnormality 90% Flexion contracture 90% Hypertonia 90% Myalgia 90% Myotonia 90% Chest pain 50% Feeding difficulties in infancy 50% Gait disturbance 50% Abnormality of the nose 7.5% Abnormality of the voice 7.5% Asthma 7.5% Cognitive impairment 7.5% Elevated serum creatine phosphokinase 7.5% Epicanthus 7.5% Hyperkalemia 7.5% Hyperlordosis 7.5% Hypothyroidism 7.5% Limitation of joint mobility 7.5% Long philtrum 7.5% Muscle weakness 7.5% Muscular edema 7.5% Myopathy 7.5% Ophthalmoparesis 7.5% Paresthesia 7.5% Respiratory insufficiency 7.5% Short neck 7.5% Short stature 7.5% Skeletal muscle atrophy 7.5% Skeletal muscle hypertrophy 7.5% Apneic episodes in infancy - Autosomal dominant inheritance - Muscle stiffness - Stridor - 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 Camptodactyly taurinuria ? | What are the signs and symptoms of Camptodactyly taurinuria? The Human Phenotype Ontology provides the following list of signs and symptoms for Camptodactyly taurinuria. 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 - Increased urinary taurine - Knee dislocation - 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 Cone-rod dystrophy amelogenesis imperfecta ? | What are the signs and symptoms of Cone-rod dystrophy amelogenesis imperfecta? The Human Phenotype Ontology provides the following list of signs and symptoms for Cone-rod dystrophy amelogenesis imperfecta. 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 color vision 90% Abnormality of dental color 90% Abnormality of dental enamel 90% Abnormality of retinal pigmentation 90% Nystagmus 90% Photophobia 90% Visual impairment 90% Optic atrophy 50% Amelogenesis imperfecta - Autosomal recessive inheritance - Carious teeth - Cone/cone-rod dystrophy - Monochromacy - Nyctalopia - Optic disc pallor - 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) Menkes disease ? | Menkes disease is a disorder that affects copper levels in the body. It is characterized by sparse, kinky hair; failure to thrive; and progressive deterioration of the nervous system. Additional signs and symptoms may be present. Children with Menkes syndrome typically begin to develop very severe symptoms during infancy. Occipital horn syndrome is one of the less severe forms of Menkes syndrome that begins in early to middle childhood. Menkes disease is caused by mutations in the ATP7A gene. It is inherited in an X-linked recessive pattern. Early treatment with copper may slightly improve the prognosis in some affected children. | |
What are the symptoms of Menkes disease ? | What are the signs and symptoms of Menkes disease? The Human Phenotype Ontology provides the following list of signs and symptoms for Menkes 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) Abnormal hair quantity 90% Abnormality of the palate 90% Aneurysm 90% Aplasia/Hypoplasia of the abdominal wall musculature 90% Developmental regression 90% Dry skin 90% Feeding difficulties in infancy 90% Full cheeks 90% Hyperextensible skin 90% Hypertonia 90% Hypopigmentation of hair 90% Intracranial hemorrhage 90% Joint hypermobility 90% Microcephaly 90% Muscular hypotonia 90% Pectus excavatum 90% Seizures 90% Umbilical hernia 90% Woolly hair 90% Abnormality of the carotid arteries 50% Abnormality of the liver 50% Arterial stenosis 50% Atypical scarring of skin 50% Behavioral abnormality 50% Cognitive impairment 50% Exostoses 50% Malabsorption 50% Mask-like facies 50% Muscle weakness 50% Narrow chest 50% Nausea and vomiting 50% Prominent occiput 50% Thickened skin 50% Venous insufficiency 50% Wormian bones 50% Bladder diverticulum 7.5% Bowing of the long bones 7.5% Chondrocalcinosis 7.5% Chorea 7.5% Gastrointestinal hemorrhage 7.5% Hypoglycemia 7.5% Hypothermia 7.5% Intrauterine growth retardation 7.5% Osteomyelitis 7.5% Recurrent fractures 7.5% Reduced bone mineral density 7.5% Sepsis 7.5% Spontaneous hematomas 7.5% Tarsal synostosis 7.5% Abnormality of the face - Brachycephaly - Cutis laxa - Death in childhood - Hypopigmentation of the skin - Intellectual disability - Joint laxity - Metaphyseal spurs - Metaphyseal widening - Osteoporosis - Short stature - Sparse hair - X-linked recessive inheritance - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common. | |
What is (are) Brittle diabetes ? | Brittle diabetes is characterized by severe instability of blood glucose levels with frequent and unpredictable episodes of hypoglycemia and/or ketoacidosis that disrupt quality of life, often requiring frequent or prolonged hospitalizations. These unpredictable episodes are due to an absolute insulin dependency, affecting type 1 diabetics almost exclusively. Brittle diabetes is most common in women in their twenties or thirties, but can occur at any age and in either gender. The condition may be caused by stress and hormonal inbalance, neglect of self-care (noncompliance), or underlying medical conditions such as malabsorption, delayed gastric emptying due to autonomic neuropathy, drug or alcohol use or abnormal insulin absorption or degradation. Treatment is difficult and dependent upon the underlying cause. | |
What are the symptoms of Brittle diabetes ? | What are the symptoms of brittle diabetes? The main symptom of brittle diabetes is severe instability of blood glucose levels with frequent and unpredictable episodes of hypoglycemia and/or ketoacidosis that cause a disruption of daily activities. Three clinical presentations have been described: Predominant hyperglycemia with recurrent ketoacidosis, Predominant hypoglycemia, and Mixed hyper- and hypoglycemia. Patients with brittle diabetes have wide swings in their blood sugar levels and often experience differing blood sugar responses to the same dose and type of insulin. Complications such as neuropathy, nephropathy, and retinopathy are common. Most patients are females in their twenties of thirties, though any age or gender can be affected. | |
What causes Brittle diabetes ? | What causes brittle diabetes? There are multiple causes of brittle diabetes. Emotional stress seems to play an important role, in some cases leading to hormonal inbalances which can lead to brittle diabetes. Emotional stress can also lead to a shift in the behavior of an individual, leading them to neglect their self-care. Other cases can be traced to physiological causes, including malabsorption, delayed gastric emptying due to autonomic neuropathy (gastroparesis), celiac disease, impaired glucose counterregulation (which doesn't allow the patient's body to react as it should when blood glucose levels drop), hypothyroidism and adrenal insufficiency, drug or alcohol use, systemic insulin resistance, and abnormal insulin absorption or degradation. | |
What are the treatments for Brittle diabetes ? | How might brittle diabetes be treated? The approach to management depends upon the underlying cause. General management strategies include diabetes education, frequent self-monitoring of blood glucose, the use of a continuous subcutaneous insulin pump in conjunction with a continuous glucose monitoring device, and, in rare cases, pancreas transplantation. Psychotherapy or working with a psychiatrist or psychologist is recommended for many people with brittle diabetes. Referral to a specialty center may be warranted in certain situations. | |
What are the symptoms of Maple syrup urine disease type 1A ? | What are the signs and symptoms of Maple syrup urine disease type 1A? The Human Phenotype Ontology provides the following list of signs and symptoms for Maple syrup urine disease type 1A. 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) Ataxia - Autosomal recessive inheritance - Cerebral edema - Coma - Elevated plasma branched chain amino acids - Feeding difficulties in infancy - Growth abnormality - Hypertonia - Hypoglycemia - Intellectual disability - Ketosis - Lactic acidosis - Lethargy - Vomiting - 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) Mandibulofacial dysostosis with microcephaly ? | Mandibulofacial dysostosis with microcephaly (MFDM) is a disorder characterized by developmental delay and abnormalities of the head and face. Affected people are usually born with a small head that does not grow at the same rate as the body (progressive microcephaly). Developmental delay and intellectual disability can range from mild to severe. Facial abnormalities may include underdevelopment of the midface and cheekbones; a small lower jaw; small and abnormally-shaped ears; and other distinctive facial features. Other features of MFDM may include hearing loss, cleft palate, heart problems, abnormalities of the thumbs, abnormalities of the trachea and/or esophagus, and short stature. MFDM is caused by mutations in the EFTUD2 gene and is inherited in an autosomal dominant manner. | |
What are the symptoms of Mandibulofacial dysostosis with microcephaly ? | What are the signs and symptoms of Mandibulofacial dysostosis with microcephaly? Mandibulofacial dysostosis with microcephaly (MFDM) may affect multiple parts of the body but primarily affects the head and face. People with MFDM are usually born with a small head (microcephaly) which does not grow at the same rate as the body. Intellectual disability ranges from mild to severe and is present in almost all affected people. Speech and language problems are also common. Facial abnormalities in affected people may include underdevelopment (hypoplasia) of the midface and cheekbones; a small lower jaw (micrognathia); small and malformed ears; facial asymmetry; and cleft palate. Other head and facial features may include a metopic ridge; up- or downslanting palpebral fissures; a prominent glabella (space between the eyebrows); a broad nasal bridge; a bulbous nasal tip; and an everted lower lip. Abnormalities of the ear canal, ear bones, or inner ear often lead to hearing loss. Affected people can also have a blockage of the nasal passages (choanal atresia) that can cause respiratory problems. Other signs and symptoms in some people with MFDM may include esophageal atresia, congenital heart defects, thumb anomalies, and/or short stature. The Human Phenotype Ontology provides the following list of signs and symptoms for Mandibulofacial dysostosis with microcephaly. 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 antihelix 90% Abnormality of the tragus 90% Cleft palate 90% Cognitive impairment 90% Low-set, posteriorly rotated ears 90% Malar flattening 90% Microcephaly 90% Neurological speech impairment 90% Preauricular skin tag 90% Short nose 90% Short stature 90% Trigonocephaly 90% Upslanted palpebral fissure 90% Atresia of the external auditory canal 50% Epicanthus 50% Large earlobe 50% Overfolded helix 50% Preaxial hand polydactyly 50% Telecanthus 50% Trismus 50% Atria septal defect 7.5% Proximal placement of thumb 7.5% Seizures 7.5% Sensorineural hearing impairment 7.5% Ventricular septal defect 7.5% Esophageal atresia 5% Anteverted nares - Autosomal dominant inheritance - Autosomal recessive inheritance - Choanal atresia - Conductive hearing impairment - Deep philtrum - Delayed speech and language development - Feeding difficulties in infancy - Hypoplasia of midface - Low-set ears - Mandibulofacial dysostosis - Microtia - Respiratory difficulties - Slender finger - 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 Mandibulofacial dysostosis with microcephaly ? | What causes mandibulofacial dysostosis with microcephaly? Mandibulofacial dysostosis with microcephaly (MFDM) is caused by mutations in the EFTUD2 gene. This gene gives the body instructions for making part of spliceosomes, which help process a type of RNA- a chemical cousin of DNA that serves as a genetic blueprint for making proteins. Mutations in EFTUD2 impair the production or function of the enzyme from the gene, which impairs the processing of mRNA. However, at this time, it is not clear how this process causes the specific symptoms of MFDM. | |
Is Mandibulofacial dysostosis with microcephaly inherited ? | How is mandibulofacial dysostosis with microcephaly inherited? Mandibulofacial dysostosis with microcephaly (MFDM) is inherited in an autosomal dominant manner. This means that having one mutated copy of the responsible gene in each cell of the body 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) chance to inherit the mutated copy of the gene. Most cases of MFDM are due to new mutations that occur for the first time in the affected person (called de novo mutations), and are not inherited from a parent. In other cases, an affected person inherits the mutation from a parent. The parent may be mildly affected or may be unaffected. Sometimes, an unaffected parent has the mutation only in some or all of their sperm or egg cells (not their body cells), which is known as germline mosaicism. | |
How to diagnose Mandibulofacial dysostosis with microcephaly ? | Is genetic testing available for mandibulofacial dysostosis with microcephaly? Yes. Genetic testing is available for mandibulofacial dysostosis with microcephaly (MFDM) and confirms the diagnosis in virtually all people suspected of having MFDM. There are two approaches to genetic testing for this condition. One is sequence analysis of the EFTUD2 gene to identify a mutation (which detects ~91% of affected people), and the other is deletion analysis (which detects ~9%), for people in whom sequencing does not detect a mutation. When a diagnosis of MFDM is strongly suspected but genetic testing is inconclusive, a clinical diagnosis may still be appropriate. However, given the high sensitivity of genetic testing for this condition, other disorders with overlapping features should first be carefully considered. The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional. | |
What are the treatments for Mandibulofacial dysostosis with microcephaly ? | How might mandibulofacial dysostosis with microcephaly be treated? Individualized treatment of craniofacial features is managed by a multidisciplinary team which may include various specialists. Surgery may be needed for a variety of abnormalities, in the newborn period or beyond. Treatment of hearing loss is individualized, and may involve conventional hearing aids, bone-anchored hearing aid, and/or cochlear implants. Occupational, physical, and/or speech/language therapies are involved as needed to optimize developmental outcome. Additional treatment information is available on GeneReviews' Web site. | |
What are the symptoms of Dopamine beta hydroxylase deficiency ? | What are the signs and symptoms of Dopamine beta hydroxylase deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Dopamine beta hydroxylase 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) Autosomal recessive inheritance - High palate - Neonatal hypoglycemia - Nocturia - Orthostatic hypotension - Ptosis - Retrograde ejaculation - Seizures - 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 Microphthalmia microtia fetal akinesia ? | What are the signs and symptoms of Microphthalmia microtia fetal akinesia? The Human Phenotype Ontology provides the following list of signs and symptoms for Microphthalmia microtia fetal akinesia. 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 outer ear 90% Aplasia/Hypoplasia affecting the eye 90% Camptodactyly of finger 90% Frontal bossing 90% Limitation of joint mobility 90% Patent ductus arteriosus 90% Short nose 90% Abnormality of the upper urinary tract 50% Duodenal stenosis 50% Hypoplasia of penis 50% Polyhydramnios 50% Symphalangism affecting the phalanges of the hand 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) Chester porphyria ? | Chester porphyria is a unique type of porphyria with the signs and symptoms of acute intermittent porphyria (AIP) and the biochemical defects of both AIP and variegate porphyria (VP). Chester porphyria does not conform to any of the recognized types of acute porphyria. The symptoms associated with Chester porphyria are similar to those observed in other acute porphyrias. Treatment is symptomatic. | |
What is (are) Troyer syndrome ? | Troyer syndrome is a neurological disorder and one of the many types of hereditary spastic paraplegia. Signs and symptoms typically begin in early childhood and may include progressive muscle weakness and stiffness (spasticity) in the legs; muscle wasting in the hands and feet; paraplegia; leg contractures; developmental delays; speech difficulty; mood swings; and short stature. Symptoms worsen over time, with most people needing a wheelchair by their 50s or 60s. Life expectancy is normal. Troyer syndrome is caused by mutations in the SPG20 gene and is inherited in an autosomal recessive manner. Treatment is symptomatic and supportive. | |
What are the symptoms of Troyer syndrome ? | What are the signs and symptoms of Troyer syndrome? The signs and symptoms of Troyer syndrome can vary, and some people are more severely affected than others. Symptoms typically begin in early childhood. Most affected children have delays in walking and talking, followed by slow deterioration in both manner of walking (gait) and speech. Affected people have progressive muscle weakness and stiffness (spasticity) in the legs; muscle wasting in the hands and feet; paraplegia; leg contractures; learning disorders; and short stature. Mood swings and mood disorders, causing inappropriate euphoria and/or crying, are common. Other features can include drooling; exaggerated reflexes (hyperreflexia) in the legs; uncontrollable movements of the arms and legs (choreoathetosis); skeletal abnormalities; and a bending outward (valgus) of the knees. There is generally a slow, progressive decline in muscle and nerve function, and symptoms worsen over time. Most people need a wheelchair by their 50s or 60s. Affected people typically have a normal life expectancy. The Human Phenotype Ontology provides the following list of signs and symptoms for Troyer 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) Ankle clonus - Autosomal recessive inheritance - Babinski sign - Brachydactyly syndrome - Camptodactyly - Cerebellar atrophy - Childhood onset - Clinodactyly - Difficulty walking - Distal amyotrophy - Drooling - Dysarthria - Dysmetria - Emotional lability - Hammertoe - Hyperextensible hand joints - Hyperplasia of midface - Hyperreflexia - Hypertelorism - Intellectual disability, mild - Knee clonus - Kyphoscoliosis - Lower limb muscle weakness - Motor delay - Pes cavus - Short foot - Short stature - Spastic gait - Spastic paraparesis - Spastic paraplegia - Upper limb spasticity - 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 Troyer syndrome ? | What causes Troyer syndrome? Troyer syndrome is caused by mutations in the SPG20 gene. This gene gives the body instructions to make a protein called spartin, which is present in many body tissues, including those of the nervous system. However, the function of this protein is not fully understood. It is thought to play various roles needed for the functions of cells. Troyer syndrome is assumed to be caused by a loss of function of the spartin protein. More research on the normal functions of the spartin protein is needed to better understand exactly how mutations in the SPG20 gene cause the features of Troyer syndrome. | |
Is Troyer syndrome inherited ? | How is Troyer syndrome inherited? Troyer syndrome is 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. Affected people inherit one mutated copy of the gene from each parent, who is referred to as a carrier. Carriers of an autosomal recessive condition typically do not have any signs or symptoms (they are unaffected). When 2 carriers of an autosomal recessive condition have children, each child has: a 25% (1 in 4) chance to be affected a 50% (1 in 2) chance to be an unaffected carrier like each parent a 25% chance to be unaffected and not be a carrier. | |
What are the treatments for Troyer syndrome ? | How might Troyer syndrome be treated? There are currently no treatments known to prevent or slow the progression of Troyer syndrome. Treatment aims to relieve symptoms of the disease and improve quality of life. Treatment for spasticity involves both exercise and medication, especially baclofen (Lioresal), which is used either orally or by intrathecal pump. Tizanidine, dantrolene (with precautions), and Botox have also been useful in reducing muscle spasticity. Daily physical therapy is recommended. Treatment may also include: Occupational therapy, assistive walking devices, and ankle-foot orthotics as needed Oxybutynin to reduce urinary urgency Antidepressants or mood stabilizers to manage emotional or mood disorders Additional information about the management of Troyer syndrome can be viewed on the GeneReviews Web site. | |
What is (are) Pseudoxanthoma elasticum ? | Pseudoxanthoma elasticum, PXE, is an inherited disorder that causes calcium and other minerals to accumulate in the elastic fibers of the skin, eyes, and blood vessels, and less frequently in other areas such as the digestive tract. PXE may cause the following symptoms: growth of yellowish bumps on the skin of the neck, under the arms, or in the groin area; reduced vision; periodic weakness in the legs (claudication); or bleeding in the gastrointestinal tract, particularly the stomach. A clinical diagnosis of PXE can be made when an individual is found to have both the characteristic eye findings and yellow bumps on the skin. ABCC6 is the only gene known to be associated with this condition. Currently, there is no treatment for this condition, but affected individuals may benefit from routine visits to an eye doctor who specializes in retinal disorders, and by having regular physical examinations with their primary physician. | |
What are the symptoms of Pseudoxanthoma elasticum ? | What are the signs and symptoms of Pseudoxanthoma elasticum? The Human Phenotype Ontology provides the following list of signs and symptoms for Pseudoxanthoma elasticum. 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 coagulation 90% Chorioretinal abnormality 90% Retinopathy 90% Skin rash 90% Thickened nuchal skin fold 90% Visual impairment 90% Bruising susceptibility 50% Myopia 50% Striae distensae 50% Abnormality of the endocardium 7.5% Abnormality of the mitral valve 7.5% Abnormality of the palate 7.5% Abnormality of the thorax 7.5% Abnormality of thrombocytes 7.5% Acne 7.5% Aneurysm 7.5% Blue sclerae 7.5% Cerebral calcification 7.5% Chondrocalcinosis 7.5% Coronary artery disease 7.5% Gastrointestinal hemorrhage 7.5% Hemiplegia/hemiparesis 7.5% Hyperextensible skin 7.5% Hypertension 7.5% Hypertrophic cardiomyopathy 7.5% Hypothyroidism 7.5% Intracranial hemorrhage 7.5% Joint hypermobility 7.5% Multiple lipomas 7.5% Nephrocalcinosis 7.5% Pruritus 7.5% Scoliosis 7.5% Sudden cardiac death 7.5% Telangiectasia of the skin 7.5% Renovascular hypertension 5% Abnormality of the mouth - Accelerated atherosclerosis - Angina pectoris - Angioid streaks of the retina - Autosomal recessive inheritance - Congestive heart failure - Hypermelanotic macule - Intermittent claudication - Macular degeneration - Mitral stenosis - Mitral valve prolapse - Reduced visual acuity - Renal insufficiency - Restrictive cardiomyopathy - Retinal hemorrhage - Stroke - 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 Pseudoxanthoma elasticum ? | What testing is available to identify unaffected carriers of pseudoxanthoma elasticum? When considering carrier testing for unaffected relatives of individuals with pseudoxanthoma elasticum (PXE), it is most useful to begin by testing an affected family member for mutations in the ABCC6 gene. Eighty percent of individuals affected with PXE are found to have mutations in the ABCC6 gene by the genetic testing currently available. Once the ABCC6 mutations that cause PXE in a family are identified, unaffected relatives may be tested for the familial mutations to determine whether or not they are carriers. | |
What are the treatments for Pseudoxanthoma elasticum ? | What treatment might be available for pseudoxanthoma elasticum? Unfortunately, there is no cure for pseudoxanthoma elasticum. Affected individuals are recommended to have regular physical examinations with their primary care physician and routine eye examinations with an eye doctor (ophthalmologist) who is familiar with retinal disorders. A team of doctors in other specialties - including dermatology, cardiology, plastic surgery, vascular surgery, genetics, and nutrition - may also help with the management this condition. Individuals should be alert to changes in their vision and should inform their eye doctor of any such changes. Several therapies may be effective for slowing the reduction in vision in PXE. Surgery may help to reduce skin symptoms, gastrointestinal symptoms, or severe vascular symptoms in the legs. | |
What is (are) Pseudohypoaldosteronism type 2 ? | Psuedohypoaldosteronism type 2 is an inborn error of metabolism. It is characterized by high blood pressure, high levels of potassium in the body, and metabolic acidosis. It is caused by mutations in the WNK1 or WNK4 gene. Treatment may involve dietary restriction of sodium and hydrochlorothiazide. | |
What are the symptoms of Pseudohypoaldosteronism type 2 ? | What are the signs and symptoms of Pseudohypoaldosteronism type 2? The most common symptom of pseudohypoaldosteronism type 2 is high blood pressure in adolescents or young adults. In its most severe form, it is associated with muscle weakness, short stature, and intellectual impairment. The Human Phenotype Ontology provides the following list of signs and symptoms for Pseudohypoaldosteronism type 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) Hyperkalemia 90% Hypertension 90% Flexion contracture 50% Nausea and vomiting 50% Abnormality of dental enamel 7.5% Muscle weakness 7.5% Short stature 7.5% Autosomal dominant inheritance - Hyperchloremic acidosis - Periodic hyperkalemic paralysis - Pseudohypoaldosteronism - 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 Pseudohypoaldosteronism type 2 ? | What causes pseudohypoaldosteronism type 2? Pseudohypoaldosteronism type 2 is caused by mutations in either the WNK1 or WNK4 genes. Mutations in these genes cause salt retention and impaired excretion of potassium and acid, leading to high blood pressure, hyperkalemia (high levels of potassium), and metabolic acidosis. | |
How to diagnose Pseudohypoaldosteronism type 2 ? | How is pseudohypoaldosteronism type 2 diagnosed? Pseudohypoaldosteronism type 2 is usually diagnosed in adults. Unexplained hyperkalemia may be the presenting symptom and Pseudohypoaldosteronism type 2 may be diagnosed after common causes of hyperkalemia have been ruled out. Mildly elevated levels of chloride ion in the blood, metabolic acidosis, and suppressed plasma renin activity are variably associated with this condition as well. Aldosterone levels may vary from high to low. | |
What are the treatments for Pseudohypoaldosteronism type 2 ? | How might pseudohypoaldosteronism type 2 be treated? Pseudohypoaldosteronism may be treated with thiazide diuretics and dietary restriction of sodium. | |
What are the symptoms of Muscular dystrophy, congenital, infantile with cataract and hypogonadism ? | What are the signs and symptoms of Muscular dystrophy, congenital, infantile with cataract and hypogonadism? The Human Phenotype Ontology provides the following list of signs and symptoms for Muscular dystrophy, congenital, infantile with cataract and hypogonadism. 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 testis 90% Gait disturbance 90% Mask-like facies 90% Muscular hypotonia 90% Polycystic ovaries 90% Skeletal muscle atrophy 90% Abnormality of the nipple 50% Cataract 50% Cubitus valgus 50% Joint hypermobility 50% Kyphosis 50% Ptosis 50% Strabismus 50% Autosomal recessive inheritance - Congenital muscular dystrophy - Hypogonadism - 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) Usher syndrome, type 2C ? | Usher syndrome is a genetic condition characterized by hearing loss or deafness, and progressive vision loss due to retinitis pigmentosa. Three major types of Usher syndrome have been described - types I, II, and III. The different types are distinguished by their severity and the age when signs and symptoms appear. All three types are inherited in an autosomal recessive manner, which means both copies of the disease-causing gene in each cell have mutations. | |
What are the symptoms of Usher syndrome, type 2C ? | What are the signs and symptoms of Usher syndrome, type 2C? The Human Phenotype Ontology provides the following list of signs and symptoms for Usher syndrome, type 2C. 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 - Congenital sensorineural hearing impairment - Rod-cone dystrophy - 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 Usher syndrome, type 2C inherited ? | How is Usher syndrome inherited? Usher syndrome is inherited in an autosomal recessive manner. This means that a person must have a change (mutation) in both copies of the disease-causing gene in each cell to have Usher syndrome. One mutated copy is typically inherited from each parent, who are each referred to as a carrier. Carriers of an autosomal recessive condition usually do not have any signs or symptoms. When two carriers of an autosomal recessive condition have children, each child has a 25% (1 in 4) chance to have the condition, a 50% (1 in 2) chance to be an unaffected carrier like each parent, and a 25% chance to not be a carrier and not be affected. | |
What are the symptoms of Renal dysplasia megalocystis sirenomelia ? | What are the signs and symptoms of Renal dysplasia megalocystis sirenomelia? The Human Phenotype Ontology provides the following list of signs and symptoms for Renal dysplasia megalocystis sirenomelia. 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 urethra 50% Aplasia/Hypoplasia of the sacrum 50% Multicystic kidney dysplasia 50% Renal hypoplasia/aplasia 50% Sirenomelia 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) Juvenile osteoporosis ? | Juvenile osteoporosis is a condition of bone demineralization characterized by pain in the back and extremities, multiple fractures, difficulty walking, and evidence of osteoporosis. Symptoms typically develop just before puberty. Osteoporosis is rare in children and adolescents. When it does occur, it is usually caused by an underlying medical disorder or by medications used to treat the disorder. This is called secondary osteoporosis. Sometimes, however, there is no identifiable cause of osteoporosis in a child. This is known as idiopathic osteoporosis. There is no established medical or surgical therapy for juvenile osteoporosis. In some cases, treatment is not necessary, as the condition resolves spontaneously. Early diagnosis may allow for preventive steps, including physical therapy, avoidance of weight-bearing activities, use of crutches and other supportive care. A well-balanced diet rich in calcium and vitamin D is also important. In severe, long-lasting cases, medications such as bisphosphonates may be used. In most cases, complete recovery of bone occurs. | |
What are the symptoms of Juvenile osteoporosis ? | What are the signs and symptoms of Juvenile osteoporosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Juvenile osteoporosis. 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) Bone pain 90% Recurrent fractures 90% Reduced bone mineral density 90% Gait disturbance 50% Kyphosis 7.5% Autosomal recessive inheritance - Low serum calcitriol (1,25-dihydroxycholecalciferol) - Osteoporosis - 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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