A patient has damage to the basal ganglia, particularly within the striatum, and demonstrates both chorea and hyperkinesia. What is your diagnosis?

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Damage to the basal ganglia, specifically the striatum, is a hallmark feature of Huntington's disease. Chorea (involuntary rapid movements) and hyperkinesia (excessive movement) are both common symptoms of this disease. Parkinson's disease is characterized by bradykinesia (slowness of movement) rather than hyperkinesia, and hypermetria (a type of ataxia) typically results from damage to the cerebellum.

A Patient Has Damage to the Basal Ganglia, Particularly Within