Spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease, is the most common subtype of type 1 autosomal dominant cerebellar ataxia (ADCA type 1; see this term), a neurodegenerative disorder, and is characterized by ataxia, external progressive ophthalmoplegia, and other neurological manifestations.

Synonyms: Nigro-spino-dentatal degeneration with nuclear ophthalmoplegia Machado-Joseph disease SCA3 MJD Machado disease Azorean disease of the nervous system

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Term information

database cross reference
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ICD-10:G11.8

UMLS:C0024408

OMIM:109150

notation

ORPHA:98757