title: Monocular rotary nystagmus.
abstract: A patient with transient monocular rotary-vertical nystagmus demonstrated decreased gain of vertical pursuit and normal vestibulo-ocular reflex on electrooculogram. A supranuclear brain stem lesion, resulting in lack of monocular inhibition of oculomotor neurons, is postulated on the basis of these findings.
mesh_terms: D004292:Dominance, Cerebral / Q000502:physiology; D004585:Electrooculography; D005403:Fixation, Ocular; D006801:Humans; D002546:Ischemic Attack, Transient / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009759:Nystagmus, Pathologic / Q000209:etiology* / Q000503:physiopathology; D014726:Vestibular Nuclei / Q000503:physiopathology