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Usher syndrome (medical condition): A rare inherited disorder characterized by sensorineural deafness and...more »
Usher syndrome: hereditary disorder believed to occur in two forms: (1) characterized by congenital deafness and severe retinitis pigmentosa, and (2) in which the inner ear and retina are less severely affected; most cases are transmitted as autosomal recessive trait, but some forms are X-linked.
Usher syndrome: Autosomal recessive hereditary disorders characterized by congenital SENSORINEURAL HEARING LOSS and RETINITIS PIGMENTOSA. Genetically and symptomatically heterogeneous, clinical classes include type I, type II, and type III. Their severity, age of onset of retinitis pigmentosa and the degree of vestibular dysfunction are variable.
Source: MeSH 2007
These medical condition or symptom topics may be relevant to medical information for Usher syndrome:
Usher syndrome is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Usher syndrome, or a subtype of Usher syndrome,
affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)
Ophanet, a consortium of European partners,
currently defines a condition rare when if affects 1 person per 2,000.
They list Usher syndrome as a "rare disease".
Source - Orphanet
Usher syndrome: Usher syndrome is listed as a type of (or associated with) the following medical conditions in our database:
Usher syndrome is an inherited condition that causes 1) a serious hearing loss that is usually... (Source: excerpt from Usher Syndrome Resource Guide: NEI)
Usher syndrome is an inherited condition that causes 1) a serious hearing loss that is usually present at birth or shortly thereafter ... (Source: excerpt from Usher Syndrome Resource Guide: NEI)
These medical disease topics may be related to Usher syndrome:
Source - CRISP
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