ArticleSurgical and radiologic anatomy : SRA2024
Posterior cerebral artery (PCA)-accessory PCA (hyperplastic anterior choroidal artery) anastomosis detected on magnetic resonance angiography.
Article in Surgical and radiologic anatomy : SRA, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 8 citations in OpenAlex.
- 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
- "Complete" duplication of the posterior cerebral artery: a rare variant detected on computed tomography angiography.Anatomical science international · 2025Article
- Abnormal fusion between the long P1 segment of the posterior cerebral artery and the long posterior communicating artery diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2025Article
- Replaced posterior cerebral artery with early branching temporal artery diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2024Article
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2 authors at 1 institution in 1 country.
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Abstract
purposeTo describe a case of posterior cerebral artery (PCA)-accessory PCA (hyperplastic anterior choroidal artery) anastomosis detected on magnetic resonance angiography.
methodsA 76-year-old man with a history of cerebral infarction underwent cranial magnetic resonance (MR) imaging and MR angiography of the intracranial region for the evaluation of brain and vascular lesions. The MR machine was a 3-Tesla scanner. MR angiography was performed using a standard three-dimensional time-of-flight technique.
resultsThere were two right PCAs. The parieto-occipital and calcarine arteries of the right PCA arose from the right ICA, indicative of accessory PCA, and there were three stenotic lesions at the proximal segment of this artery. The temporal artery of the right PCA originated from the basilar artery. A small anastomotic channel between these two arteries was identified on partial maximum intensity projection (MIP) images. Computed tomography angiography was additionally performed and the findings were confirmed.
conclusionWe speculated that the pressure gradient between the PCA and the accessory PCA enlarged the anastomotic channel. Partial MIP images are useful for diagnosing small arterial variations using MR angiography.
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