title: Hemifacial spasm producing tremor-like movements of the head.
abstract: Tremor is defined as involuntary rhythmic oscillation and is produced by muscle contractions. Hemifacial spasm is rapid involuntary muscle contractions on one side of the face in the distribution of the VIIth nerve. We present a severe case of hemifacial spasm that produces a head-nodding tremor-like movements.
authors.affiliation: The Parkinson's and Movement Disorders Institute, 9940 Talbert Ave Suite 204, Fountain Valley, CA 92708, United States.
authors.forename: K P
authors.initials: KP
authors.lastname: Frei
authors.forename: D D
authors.initials: DD
authors.lastname: Truong
mesh_terms: D006257:Head / Q000503:physiopathology*; D019569:Hemifacial Spasm / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology*; D014202:Tremor / Q000209:etiology* / Q000473:pathology*