The Human Phenotype Ontology (HPO) provides the following list of features that have been reported in people with this condition. Much of the information in the HPO comes from Orphanet, a European rare disease database. If available, the list includes a rough estimate of how common a feature is (its frequency). Frequencies are based on a specific study and may not be representative of all studies. You can use the MedlinePlus Medical Dictionary for definitions of the terms below.
|Signs and Symptoms||Approximate number of patients (when available)|
(present in 5%-29% of cases)
|Autosomal recessive inheritance||-|
|Bone spicule pigmentation of the retina||-|
|Decreased sensory nerve conduction velocity||-|
|Distal muscle weakness||-|
|Impaired vibration sensation in the lower limbs||-|
|Joint contracture of the hand||-|
|Positive Romberg sign||-|
|Recurrent urinary tract infections||-|
|Skeletal muscle atrophy||-|
Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.
Living with a genetic or rare disease can impact the daily lives of patients and families. These resources can help families navigate various aspects of living with a rare disease.
These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.
Workshop on Potential Therapeutic Use of Neurotrophic Factors for Ocular Diseases Thursday, November 7, 1996
Location: NIH Campus, Bethesda, MD
Contact: Dr. Maria Giovanni(301) 496-1884
Co-funding Institute(s): National Eye Institute
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