ArticleSurgical and radiologic anatomy : SRA2025
Persistent primitive olfactory artery associated with accessory middle cerebral artery and partially duplicated anterior communicating 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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Who cites it
3 citing papers in PubMed.
- Partial duplication of the anterior communicating artery: A case report.Radiology case reports · 2025Article
- Persistent trigeminal artery linked with partial duplication of the anterior communicating artery.Surgical and radiologic anatomy : SRA · 2025Article
- Concomitance of persistent primitive olfactory artery, accessory middle cerebral, and early bifurcated anterior cerebral arteries.Surgical and radiologic anatomy : SRA · 2025Article
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4 authors.
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Abstract
purposeAlthough anatomical variations in the anterior cerebral artery (ACA), anterior communicating artery (ACoA) complex, and/or middle cerebral artery (MCA) are common, their combination is rare. Persistent primitive olfactory artery (PPOA) is a rare variant of the proximal ACA that has a hairpin curve associated with cerebral aneurysms. To our knowledge, there are no previous reports of PPOA associated with accessory MCA and partially duplicated ACoA.
methodsWe report a case of PPOA with a suspected aneurysm at the hairpin curve associated with accessory MCA and partially duplicated ACoA, diagnosed by 1.5-Tesla magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA).
resultsA 46-year-old woman visited our hospital for screening examinations for cerebrovascular disease. MRA showed hairpin curves in the proximal portions of the bilateral ACAs, which we considered to be bilateral PPOAs (type 1). MRA three-dimensional volume rendering images revealed a small bulge, a suspected aneurysm, at the left hairpin curve. MRI/MRA showed that the left accessory MCA originated just proximal to the bulge in the hairpin curve. A partial duplication of the ACoA was also observed. We plan to follow up on the bulge in the hairpin curve because of the increased risk of aneurysm formation.
conclusionCareful imaging assessment is important to identify rare anatomical variations. MRA three-dimensional volume rendering images provided a better understanding of the vascular structure, including the presence of a small bulge suspected to be an aneurysm. In our case, accessory MCA was considered to enhance local hemodynamic stress at the hairpin curve.
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