Aneurysmal subarachnoid hemorrhage with concomitant posterior communicating artery fenestration

Gregory M. Weiner, Ramesh Grandhi, Nathan T. Zwagerman, Nitin Agarwal, Robert M. Friedlander

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Fenestrations of the posterior communicating artery (PCoA) are extremely rare. Associated aneurysms have only been documented three times in the literature, and none associated with a subarachnoid hemorrhage. We describe a 52-year-old female who presented with a subarachnoid hemorrhage secondary to a ruptured saccular aneurysm at the proximal limb of a fenestrated right PCoA. The patient was also found to have bilateral middle cerebral artery (MCA) aneurysms. Surgical management included surmising the etiology of the subarachnoid hemorrhage with subsequent clipping of both the right PCoA and MCA aneurysm. The potential embryological mechanisms leading to a PCoA fenestration are discussed.

Original languageEnglish
Pages (from-to)154-158
Number of pages5
JournalInternational Journal of Neuroscience
Issue number2
StatePublished - Feb 1 2015


  • Fenestration
  • Intracranial aneurysm
  • Middle cerebral artery
  • Posterior communicating artery


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