Palatal myoclonus--case report.

Palatal myoclonus is the name of a syndrome characterized by an involuntary rhythmic movement of the soft palate, occasionally involving the facial muscles, pharynx, larynx, and diaphragm. A review of the literature involving the etiology, pathology, symptoms, and treatment is presented. A case is reported with successful treatment with phenytoin sodium and phenobarbital. Also presented and discussed are the influences of acoustic and corneal stimulations on the myoclonic activity.