Aneurysm originating from the fenestration of the posterior cerebral artery: Case report

Tomomi Iwashita, Yuichiro Tanaka, Kazuhiro Hongo, Jun Ichi Koyama, Toru Koyama, Junpei Nitta, Daniel L. Barrow, H. Hunt Batjer, Christopher S. Ogilvy

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

OBJECTIVE AND IMPORTANCE: A rare case of an aneurysm arising at the fenestration of the P2 segment of the posterior cerebral artery is reported. CLINICAL PRESENTATION: A 37-year-old man presented with severe headache and disturbance of consciousness. Computed tomographic scanning showed diffuse subarachnoid hemorrhage. Cerebral angiography revealed an aneurysm at the fenestration of the P2 segment of the right posterior cerebral artery. The aneurysm was located at the middle portion of the lower trunk of the fenestration. An unruptured arteriovenous malformation was incidentally found in the right thalamus. INTERVENTION: A right frontotemporal craniotomy with orbitozygomatic osteotomy was made, and the aneurysm was successfully clipped. One year after the operation, gamma knife surgery was performed for the right thalamic arteriovenous malformation. CONCLUSION: This is the first reported case of an aneurysm originating from the middle portion of a fenestrated posterior cerebral artery.

Original languageEnglish (US)
Pages (from-to)881-884
Number of pages4
JournalNeurosurgery
Volume50
Issue number4
DOIs
StatePublished - Apr 1 2002

Keywords

  • Arteriovenous malformation
  • Dissecting aneurysm
  • Fenestration
  • Posterior cerebral artery
  • Subarachnoid hemorrhage

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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