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94147 Spinocerebellar ataxia type 7

definition

Spinocerebellar ataxia type 7 (SCA7), currently the only known form of autosomal dominant cerebellar ataxia type 2 (ADCA2; see this term), is a neurodegenerative disorder characterized by progressive ataxia, motor system abnormalities, dysarthria, dysphagia and retinal degeneration leading to progressive blindness.