Abducens paresis. A rare presenting sign of posterior-inferior cerebellar artery aneurysm.
Posterior fossa aneurysms comprise a minority of intracranial aneurysms, but produce a wide array of signs and symptoms. We report a patient with slowly progressive unilateral sixth nerve paresis secondary to a saccular aneurysm of the posterior-inferior cerebellar artery. Neuroradiologic investigation of subarachnoid hemorrhage is discussed, and the literature concerning posterior circulation aneurysms is reviewed.
D000010:Abducens Nerve; D000783:Aneurysm / Q000150:complications / Q000175:diagnosis*; D001158:Arteries; D002531:Cerebellum / Q000098:blood supply*; D004172:Diplopia / Q000209:etiology*; D004948:Esotropia / Q000209:etiology; D005260:Female; D006801:Humans; D008875:Middle Aged; D009886:Ophthalmoplegia / Q000209:etiology*; D014057:Tomography, X-Ray Computed