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Variations of the Posterior Communicating Artery (PCoA), Proximal Posterior Cerebral Artery (PCA), and Anterior Choroidal Artery (AChA)

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Atlas of the Supraaortic Craniocervical Arterial Variations

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Abstract

This chapter includes (1) P1 aplasia and hypoplasia of the PCA (Fetal-type PCA), (2) Extremely long PCoA and P1 segment of the PCA, (3) Duplicate origin of the PCoA, (4) PCA branch arising from the PCoA, (5) Hyperplastic AChA (Accessory PCA, Replaced PCA), (6) Duplication of the PCA, (7) Duplicate origin of the PCA, (8) Fenestration of the PCA, (9) Early bifurcation of the PCA, (10) Artery of Percheron, and (11) Infundibular dilatation of the PCoA, AChA and hypoplastic P1 segment of the PCA. There are 21 figures and 2 illustrations.

There are many variations in this area. They play important role in collateral circulation. They can represent cerebral ischemia due to unique blood flow.

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Authors and Affiliations

  1. Department of Radiology, Saitama Sekishinkai Hospital, Sayama, Saitama, Japan

    Akira Uchino

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  1. Akira Uchino
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Uchino, A. (2022). Variations of the Posterior Communicating Artery (PCoA), Proximal Posterior Cerebral Artery (PCA), and Anterior Choroidal Artery (AChA). In: Atlas of the Supraaortic Craniocervical Arterial Variations. Springer, Singapore. https://doi.org/10.1007/978-981-16-6803-6_7

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  • DOI: https://doi.org/10.1007/978-981-16-6803-6_7

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-6802-9

  • Online ISBN: 978-981-16-6803-6

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