title: Risus sardonicus after thalamic haemorrhage.
abstract: We describe an uncommon movement disorder after stroke. A 70-year-old man was admitted for a right thalamic haemorrhage and 1 week later developed bilateral contractions of the face. Electromyographic study revealed a bilateral facial dystonia. The association of this bilateral facial dystonia and vertical gaze palsy produced the aspect of a "risus sardonicus."
authors.affiliation: Fédération de Neurosciences Cliniques, Centre Hospitalier Universitaire Bordeaux, Bordeaux, France.
authors.forename: Igor
authors.initials: I
authors.lastname: Sibon
authors.affiliation: Fédération de Neurosciences Cliniques, Centre Hospitalier Universitaire Bordeaux, Bordeaux, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Burbaud
mesh_terms: D000368:Aged; D002543:Cerebral Hemorrhage / Q000150:complications* / Q000000981:diagnostic imaging*; D004421:Dystonia / Q000209:etiology* / Q000503:physiopathology; D004576:Electromyography / Q000295:instrumentation; D005149:Facial Expression; D005152:Facial Muscles / Q000503:physiopathology; D019569:Hemifacial Spasm / Q000209:etiology*; D006429:Hemiplegia / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D008297:Male; D013788:Thalamus / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed