title: Internal carotid artery occlusion manifesting only as oculomotor nerve palsy.
abstract: Oculomotor nerve palsy is very rare as the only manifestation of internal carotid artery (ICA) occlusion, and the angiographic findings have not been described in detail. We present a case of ipsilateral ICA occlusion manifesting as only sudden onset of oculomotor nerve palsy. Cerebral angiography showed occlusion of the ICA from the cervical portion to the ophthalmic portion. Distal blood flow was compensated through an anastomosis from other arteries. Ischemia of the oculomotor nerve was thought to be caused by loss of supply from branches arising from the occluded cavernous portion of the ICA.
authors.affiliation: Department of Neurosurgery, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan. arata@yamanashi.ac.jp
authors.forename: Arata
authors.initials: A
authors.lastname: Watanabe
authors.forename: Toru
authors.initials: T
authors.lastname: Horikoshi
authors.forename: Mikito
authors.initials: M
authors.lastname: Uchida
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kinouchi
mesh_terms: D000368:Aged; D000983:Antipyrine / Q000008:administration & dosage / Q000031:analogs & derivatives; D002343:Carotid Artery, Internal / Q000033:anatomy & histology / Q000000981:diagnostic imaging* / Q000503:physiopathology; D016893:Carotid Stenosis / Q000150:complications* / Q000000981:diagnostic imaging* / Q000473:pathology; D002426:Cavernous Sinus / Q000033:anatomy & histology; D002533:Cerebral Angiography; D002560:Cerebrovascular Circulation / Q000502:physiology; D002941:Circle of Willis / Q000033:anatomy & histology / Q000502:physiology; D000077553:Edaravone; D016166:Free Radical Scavengers / Q000008:administration & dosage; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009802:Oculomotor Nerve / Q000098:blood supply* / Q000503:physiopathology; D015840:Oculomotor Nerve Diseases / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D049268:Positron-Emission Tomography; D014805:Vitamin B 12 / Q000008:administration & dosage
chemical_list: D016166:Free Radical Scavengers; D014805:Vitamin B 12; D000077553:Edaravone; D000983:Antipyrine