chorea

Abnormal, nonrepetitive, involuntary movements of the limbs, body, and face. Chorea may start with clumsiness, but later uncontrollable and bizarre movements occur. It is a disease of basal ganglia. Sydenham's chorea, or Saint Vitus' dance, is a childhood illness associated with streptococcus infection, and rheumatic fever; recovery is usually full. Huntington's disease (Huntington's chorea) is a rare hereditary condition, usually coming on in middle age and associated with progressive dementia.

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• HEALTH AND DISEASE

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