title: Hemifacial spasm leading to diagnosis of Moyamoya disease.
abstract: We present a case of Moyamoya disease presenting as hemifacial spasm due to compression of the facial nerve by a vascular loop related to compensatory enlargement of the posterior circulation vessels.
authors.affiliation: Department of Neurology, Auckland City Hospital, Auckland, New Zealand.
authors.forename: Teddy Y
authors.initials: TY
authors.lastname: Wu
authors.forename: Andrew
authors.initials: A
authors.lastname: Smith
authors.forename: Dean
authors.initials: D
authors.lastname: Kilfoyle
mesh_terms: D000328:Adult; D019569:Hemifacial Spasm / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D009072:Moyamoya Disease / Q000150:complications / Q000175:diagnosis*