Fenestration of the posteroinferior cerebellar artery: Case report

Document Type

Article

Abstract

OBJECTIVE AND IMPORTANCE: Fenestrations of cerebral arteries are rare, but very important to diagnose given their high association with saccular aneurysms. We present the first reported case of a fenestration of the posteroinferior cerebellar artery (PICA). CLINICAL PRESENTATION: A 62-year-old man who presented with a subarachnoid hemorrhage underwent repeated four-vessel cerebral angiography. An isolated right PICA abnormality consistent with a dissection or fenestration was revealed. INTERVENTION: The patient underwent surgical exploration of his PICA, which confirmed a PICA fenestration without an associated saccular aneurysm. The fenestration was wrapped with cotton. CONCLUSION: Our case report illustrates the novel anatomic finding of a fenestration of the PICA. Knowledge of this entity would be helpful in the differential diagnosis of a posterior fossa subarachnoid hemorrhage.

Publication Date

12-1-2000

Publication Title

Neurosurgery

ISSN

0148396X

Volume

47

Issue

2

First Page

463

Last Page

465

PubMed ID

10942023

Digital Object Identifier (DOI)

10.1097/00006123-200008000-00041

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