A dyskinesia characterized by an inability to maintain the fingers, toes, tongue, or other body parts in a stable position, resulting in continuous slow, sinusoidal, and flowing involuntary movements. This condition is frequently accompanied by CHOREA, where it is referred to as choreoathetosis. Athetosis may occur as a manifestation of BASAL GANGLIA DISEASES or DRUG TOXICITY. (From Adams et al., Principles of Neurology, 6th ed, p76)

Synonyms: Disease, Hammond, Movements, Athetoid, Athetoid Movements, Disease, Hammond's, Hammond Diseases, Athetoid Movement, Athetosis, Diseases, Hammond, Hammond Disease, Athetoses, Diseases, Hammond's, Hammond's Disease, Hammonds Disease, Hammond's Diseases, Movement, Athetoid