<unk>  sancti viti (Latin for "St. Vitus' dance") is an abnormal involuntary movement disorder, one of a group of neurological disorders called dyskinesias. The term<unk>  is derived from a Greek word χορεία (a kind of dance), as the quick movements of the feet or hands are vaguely comparable to dancing or piano playing.
Chorea
Myoclonus
Dystonia
Lenticonus
Opisthotonus
Athetosis
Pseudoathetosis
Aphonia