Spinocerebellar ataxia type 3 phenotypically resembling parkinson disease in a black family.

Abstract

BACKGROUND Machado-Joseph disease (MJD), also known as spinocerebellar ataxia type 3 (SCA3), can present with parkinsonism. However, classically, atypical features, including pyramidal and cerebellar signs, peripheral neuropathy, and/or anterior horn cell dysfunction, are also seen. Levodopa responsiveness is unusual in this disorder. OBJECTIVE To… (More)

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