title: Spontaneous occlusion of ruptured vertebral artery dissection at the extradural fenestration associated with extradural origin of the posterior inferior cerebellar artery--case report.
abstract: A 69-year-old female suffered from sudden onset of severe headache. Computed tomography showed subarachnoid hemorrhage primarily located in the posterior fossa. Initial angiography demonstrated a fenestration of the vertebral artery and an extracranial origin of the posterior inferior cerebellar artery. However, no bleeding points could be clearly detected. The operative findings revealed a massive clot in subarachnoid space, but no bleeding point. Serial angiography demonstrated dissection in one of the limbs of the fenestrated vertebral artery on the 25th day after the onset. On the 100th day, the lesion was spontaneously occluded. The patient is presently doing well at 8 years after surgery.
authors.affiliation: Department of Neurosurgery, Ashikaga Red Cross Hospital, Tochigi.
authors.forename: T
authors.initials: T
authors.lastname: Hayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Hirose
authors.forename: M
authors.initials: M
authors.lastname: Sagoh
authors.forename: H
authors.initials: H
authors.lastname: Murakami
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000000981:diagnostic imaging*; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging*; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging*; D002531:Cerebellum / Q000098:blood supply*; D002533:Cerebral Angiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D012075:Remission, Spontaneous; D013345:Subarachnoid Hemorrhage / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000002:abnormalities / Q000000981:diagnostic imaging*