title: [Saccular aneurysm arising from the basilar artery fenestration: a case report].
abstract: This patient, 29-year-old female, had an attack of subarachnoid hemorrhage. On admission a cerebral angiogram showed a saccular aneurysm arising from the proximal origin of the fenestrated basilar artery (Fig. 1). The aneurysm was clipped successfully with two steps under a right retromastoidal suboccipital craniectomy (Fig. 2). Association of the fenestrated basilar artery and saccular aneurysm is rare. To our knowledge, 9 cases have been found in the literature and only 4 cases were operated. The authors discussed the pathogenesis and treatment of such aneurysms.
mesh_terms: D000328:Adult; D001488:Basilar Artery / Q000473:pathology / Q000601:surgery*; D002533:Cerebral Angiography; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000209:etiology / Q000601:surgery*; D012039:Regional Blood Flow; D014711:Vertebral Artery / Q000503:physiopathology