title: Ruptured dissecting vertebral artery aneurysm detected by repeated angiography: case report.
abstract: A case of a ruptured dissecting aneurysm of the vertebral artery, which was detected by repeated angiography (third time), is reported. A 59-year-old woman, whose preoperative angiogram showed no abnormality, underwent a bifrontal craniotomy and the total removal of the right frontal glioma. However, a subarachnoid hemorrhage was detected by computed tomography the day after the surgery. Conventional angiography performed on the same day revealed no definite abnormality. Nevertheless, 9 days after surgery, a second subarachnoid hemorrhage occurred. The dissecting aneurysm of the vertebral artery was revealed by angiography. It is important to suspect this type of aneurysm as a differential diagnosis when the cause of the subarachnoid hemorrhage is not clarified in the first angiogram.
authors.affiliation: Department of Neurosurgery, Hokkaido University School of Medicine, Sapporo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Nohjoh
authors.forename: K
authors.initials: K
authors.lastname: Houkin
authors.forename: A
authors.initials: A
authors.lastname: Takahashi
authors.forename: H
authors.initials: H
authors.lastname: Abe
mesh_terms: D000784:Aortic Dissection / Q000000981:diagnostic imaging*; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging*; D001932:Brain Neoplasms / Q000601:surgery*; D002533:Cerebral Angiography; D003399:Craniotomy; D005260:Female; D005625:Frontal Lobe / Q000601:surgery*; D005910:Glioma / Q000601:surgery*; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011183:Postoperative Complications / Q000000981:diagnostic imaging*; D012008:Recurrence; D014057:Tomography, X-Ray Computed; D014711:Vertebral Artery / Q000000981:diagnostic imaging*