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A “PICA Communicating Artery” Aneurysm: Case Report

Mary Louise Hlavin, Yoshiro Takaoka, Alison S. Smith

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Abstract

Abstract We present an unusual case of an aneurysm of the distal posterior inferior cerebellar artery (PICA). The aneurysm was associated with a unilateral PICA that supplied both cerebellar hemispheres and arose from an anastomotic vessel to the contralateral circulation, a branch of the contralateral PICA. Such an aneurysm has not been reported previously. The association of vascular anomalies with aneurysms of the PICA is discussed.

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What this paper is about

Abstract We present an unusual case of an aneurysm of the distal posterior inferior cerebellar artery (PICA). The aneurysm was associated with a unilateral PICA that supplied both cerebellar hemispheres and arose from an anastomotic vessel to the contralateral circulation, a branch of the contralateral PICA. Such an aneurysm has not been reported previously. The association of vascular anomalies with aneurysms of the PICA is discussed.

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OpenAlex reports 18 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Abstract We present an unusual case of an aneurysm of the distal posterior inferior cerebellar artery (PICA). The aneurysm was associated with a unilateral PICA that supplied both cerebellar hemispheres and arose from an anastomotic vessel to the contralateral circulation, a branch of the contralateral PICA. Such an aneurysm has not been reported previously. The association of vascular anomalies with aneurysms of the PICA is discussed.

Key concepts: Pica (typography), Posterior inferior cerebellar artery, Medicine, Aneurysm, Anastomosis, Surgery, Radiology, Anatomy

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