ArticleSurgical and radiologic anatomy : SRA2025
Accessory posterior cerebral artery as a duplicate anterior choroidal artery.
Article in Surgical and radiologic anatomy : SRA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Accessory posterior cerebral artery-posterior cerebral artery anastomosis located just distal to the P1-P2 junction incidentally diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2026Article
- Nomenclatural symmetry of accessory middle cerebral artery and accessory posterior cerebral artery in a single patient.Surgical and radiologic anatomy : SRA · 2026Article
- Combination of three rare arterial variations: accessory posterior cerebral artery supplying parieto-occipital branch, duplicate origin of the middle cerebral artery, and accessory anterior cerebral artery (ACA) arising from X-shaped ACA diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2025Article
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7 authors.
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Abstract
purposeAnatomical variations in the anterior choroidal artery (AChA) and/or the posterior cerebral artery (PCA) are rare. Hyperplastic AChA is an anatomical variant supplying both the AChA area and the PCA area. In accessory PCA, a hyperplastic AChA supplies part of the PCA territory. To our knowledge, there are no previous reports of accessory PCA associated with duplicated AChAs.
methodsWe report a case of accessory PCA as a duplicated AChA associated with contralateral accessory middle cerebral artery, diagnosed by digital subtraction angiography.
resultsA 34-year-old man visited our hospital because of headache and neck pain. Magnetic resonance imaging showed flow voids around the left medial temporal lobe. Magnetic resonance angiography showed vascular structures in the left PCA. Left internal carotid angiography revealed the accessory PCA supplying not only the AChA (plexal segment) territory but also part of the PCA (anterior and posterior temporal arteries) territory. Three-dimensional rotational angiography revealed a tiny branch proximal to accessory PCA. Careful assessment revealed that the tiny branch perfused the left AChA (cisternal segment) territory. Therefore, we made a diagnosis of duplicated AChAs. Right internal carotid angiography also showed the accessory middle cerebral artery originating from the anterior cerebral artery (proximal A1 segment).
conclusionCareful imaging assessment is important to identify the rare anatomical variations seen in this case, in which three-dimensional rotational angiography was useful and provided a better understanding of the vascular structure, including tiny vessels.
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