Athetosis

**Definition:** 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)

**Tree numbers:** - C10.597.350.110 - C23.888.592.350.110

**Synonyms:** - Athetoid Movements - Hammond Disease - Hammond's Disease