A rare variant of accessory posterior cerebral artery.
Surg Radiol Anat 2023;
45:523-526. [PMID:
36991211 DOI:
10.1007/s00276-023-03127-6]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 03/09/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND
The posterior cerebral artery (PCA) leaves from the distal end of the basilar artery (BA) and is joined to the internal carotid artery (ICA) by the posterior communicating artery (PComA).
METHOD
The archived computed tomography angiogram of a 67 y.o. male patient was studied anatomically.
RESULTS
Anatomically normal PCAs left the BA. Both anterior choroidal arteries were found but the right one was hyperplastic. As the latter distributed parieto-occipital and calcarine branches, it was regarded as an accessory PCA. It was laterally to the normal one, inferior to the vein of Rosenthal.
CONCLUSION
The terms "accessory PCA" and "hyperplastic anterior choroidal artery" describe the same morphology. Rare anatomical variants could benefit from a homogenous terminology.
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