Chorea is any of a group of disorders characterized by brief, rapid, involuntary movements of the limbs, face, trunk, and head.
hereditary c. A hereditary, progressive, degenerative disease of the brain beginning in adult life and causing mental deterioration; characterized by involuntary jerky movements, usually of the trunk, shoulders, and lower limbs.
infectious c. See Sydenham’s chorea.
senile c. Mild involuntary, usually unilateral, movements of the limbs occurring in the
Sydenham’s c. A symptom complex occurring in children, marked by muscle
weakness, lack of coordination, and involuntary movements intensified by voluntary effort; associated with acute rheumatic fever.