A condition in which there is a constant succession of slow, writhing, involuntary movements of flexion, extension, pronation, and supination of the fingers and hands, and sometimes of the toes and feet. Usually caused by an extrapyramidal lesions. Syn: extrapyramidal cerebral palsy, Hammond’s disease.


[G. athetos, without position or place]

double athetosis

double congenital athetosis

posthemiplegic athetosis