title: Asymmetrical ocular pursuit with posterior fossa tumors.
abstract: We report two patients with posterior fossa neoplasms who demonstrated asymmetrically impaired horizontal ocular pursuit documented with electrooculography. One patient had impaired pursuit contralateral to a pontomedullary lesion, whereas the second patient had impaired pursuit ipsilateral to a pontocerebellar lesion. These patients demonstrate that posterior fossa lesions may impair ocular pursuit either contralaterally or ipsilaterally unlike cerebral hemispheric lesions, which impair ocular pursuit ipsilaterally or bilaterally.
authors.affiliation: Department of Otolaryngology, University of Pittsburgh School of Medicine, PA.
authors.forename: J M
authors.initials: JM
authors.lastname: Furman
authors.forename: M R
authors.initials: MR
authors.lastname: Hurtt
authors.forename: W L
authors.initials: WL
authors.lastname: Hirsch
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000503:physiopathology; D000368:Aged; D000369:Aged, 80 and over; D001254:Astrocytoma / Q000175:diagnosis / Q000503:physiopathology; D001932:Brain Neoplasms / Q000175:diagnosis / Q000503:physiopathology*; D002528:Cerebellar Neoplasms / Q000175:diagnosis / Q000503:physiopathology*; D003388:Cranial Fossa, Posterior; D004585:Electrooculography; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012249:Rhombencephalon / Q000503:physiopathology*; D012438:Saccades / Q000502:physiology*