title: Arnold-Chiari malformation--some otoneurological features.
abstract: Arnold-Chiari malformation was diagnosed in five patients with vertigo. Four were of anatomical type I. A case report is given of one patient who presented features of a unilateral cerebellopontine angle lesion. Downward beating vertical nystagmus was an important finding in three of the five patients. Other clinical and radiological features of the condition are discussed.
mesh_terms: D001139:Arnold-Chiari Malformation / Q000175:diagnosis*; D002526:Cerebellar Diseases / Q000175:diagnosis; D002530:Cerebellopontine Angle; D003937:Diagnosis, Differential; D006319:Hearing Loss, Sensorineural / Q000209:etiology; D006801:Humans; D008297:Male; D008575:Meniere Disease / Q000175:diagnosis; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000209:etiology; D014717:Vertigo / Q000209:etiology