title: Endovascular repair of ruptured aneurysm arising from fenestration of the horizontal segment of the anterior cerebral artery: case report.
abstract: A 50-year-old man presented with an aneurysm arising from a fenestration of horizontal portion (A(1)) of the anterior cerebral artery manifesting as subarachnoid hemorrhage. Coil embolization was conducted and the aneurysm was occluded easily. Most reported cases of these types of aneurysms underwent direct surgery. Aneurysm arising from the A(1) fenestration is rare, but the present case shows that coil embolization can be an effective treatment modality. Three-dimensional rotational angiography and aneurysmography were helpful to characterize this complicated vascular structure.
authors.affiliation: Department of Neurosurgery, Osaki Citizen Hospital, Osaki, Miyagi. m-ysd@ya2.so-net.ne.jp
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yoshida
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ezura
authors.forename: Kazuto
authors.initials: K
authors.lastname: Sasaki
authors.forename: Masashi
authors.initials: M
authors.lastname: Chonan
authors.forename: Masaki
authors.initials: M
authors.lastname: Mino
mesh_terms: D017542:Aneurysm, Ruptured / Q000175:diagnosis / Q000628:therapy*; D020771:Anterior Cerebral Artery / Q000002:abnormalities*; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000175:diagnosis / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000628:therapy*; D014057:Tomography, X-Ray Computed