title: De novo distal posterior cerebral artery aneurysm.
abstract: BACKGROUND
  De novo aneurysms in the posterior circulation are very rare. The authors describe a first case of ruptured de novo posterior cerebral artery (PCA) aneurysm in the P3 portion.
  
  
  METHODS
  A 52-year-old woman with ruptured de novo P3 aneurysm was treated by early endovascular obliteration using Guglielmi Detachable Coils (GDC). To prevent vasospasm, she received postoperative treatment with a hypertensive hypervolemia dilution and a calcium antagonist. She was discharged without neurologic deficits.
  
  
  CONCLUSIONS
  Aneuryms arising from peripheral segment of PCA are rare, and delayed surgical clipping has been recommended for these lesions. This is the first report of a de novo P3 ruptured aneurysm treated by endovascular embolization using GDC in the acute stage of subarachnoid hemorrhage. The characteristics of de novo posterior circulation aneurysms and the strategy for the distal PCA aneurysms are discussed.
authors.affiliation: Department of Neurosurgery, National Kure Medical Center, Hiroshima, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yoshioka
authors.forename: Takuhiro
authors.initials: T
authors.lastname: Hotta
authors.forename: Eiji
authors.initials: E
authors.lastname: Taniguchi
authors.forename: Naomi
authors.initials: N
authors.lastname: Hashimoto
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Kinoshita
authors.forename: Shinji
authors.initials: S
authors.lastname: Ohba
authors.forename: Kazunori
authors.initials: K
authors.lastname: Arita
authors.forename: Kaoru
authors.initials: K
authors.lastname: Kurisu
mesh_terms: D000328:Adult; D017542:Aneurysm, Ruptured / Q000175:diagnosis* / Q000601:surgery*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis* / Q000601:surgery*