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01-07-2015 | Anatomic Variations

Extremely long posterior communicating artery diagnosed by MR angiography: report of two cases

Authors: Akira Uchino, Chihiro Suzuki, Masahiko Tanaka

Published in: Surgical and Radiologic Anatomy | Issue 5/2015

Abstract

We report two cases of an extremely long left posterior communicating artery (PCoA) diagnosed by magnetic resonance (MR) angiography. The PCoA arose from the normal point of the supraclinoid internal carotid artery and fused with the posterior cerebral artery (PCA) at its posterior ambient segment, forming an extremely long PCoA and extremely long precommunicating segment of the PCA. To our knowledge, this is the first report of such variation. Careful observation of MR angiographic images is important for detecting rare arterial variations. To identify these anomalous arteries on MR angiography, partial maximum-intensity-projection images are useful.

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Title: Extremely long posterior communicating artery diagnosed by MR angiography: report of two cases
Authors: Akira Uchino
Chihiro Suzuki
Masahiko Tanaka
Publication date: 01-07-2015
Publisher: Springer Paris
Published in: Surgical and Radiologic Anatomy / Issue 5/2015
Print ISSN: 0930-1038
Electronic ISSN: 1279-8517
DOI: https://doi.org/10.1007/s00276-014-1413-4

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Extremely long posterior communicating artery diagnosed by MR angiography: report of two cases

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