title: Downbeat nystagmus.
abstract: A patient with downbeating nystagmus in the primary position and vertical saccadic pursuit is presented. The possible etiologies of these features and their diagnostic significance is discussed.
mesh_terms: D000368:Aged; D014695:Cerebral Ventriculography; D005133:Eye Movements; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging; D008579:Meningioma / Q000150:complications* / Q000000981:diagnostic imaging; D009759:Nystagmus, Pathologic / Q000175:diagnosis* / Q000209:etiology; D012438:Saccades; D014057:Tomography, X-Ray Computed; D014792:Visual Acuity