ArticleSurgical and radiologic anatomy : SRA2024
Combined duplicate origin and early bifurcated middle cerebral artery diagnosed by 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.
- Internal carotid artery-middle cerebral artery junction small arterial ring: A report of two cases diagnosed by magnetic resonance angiography.Radiology case reports · 2026Article
- Semicircular fenestration of the mid M1 segment of the middle cerebral artery diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2025Article
- 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
- Large arterial ring formed by a duplicate origin of the middle cerebral artery (MCA) with a frontal branch arising from the superior channel of the ring (main MCA) diagnosed by magnetic resonance angiography.Surgical and radiologic anatomy : SRA · 2024Article
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Abstract
purposeTo describe a case of combined duplicate origin and early bifurcated middle cerebral artery (MCA) incidentally diagnosed using magnetic resonance (MR) angiography.
methodsA 51-year-old woman with an unruptured left MCA aneurysm underwent cranial MR angiography with a 3-Tesla scanner for presurgical evaluation. MR angiography was performed using a standard 3-dimensional time-of-flight technique.
resultsAn unruptured left MCA aneurysm at the M1-M2 junction was identified. The maximum aneurysm diameter was 9 mm. Two almost equally sized right MCAs arose from the terminal segment of the right internal carotid artery. These two channels soon anastomosed, and the temporal branch arose from the inferior channel. The aneurysm was successfully treated with coil embolization.
conclusionWe herein report a case of a combined duplicate origin and early bifurcated MCA. This variation can also be regarded as anastomosis between the main MCA and the duplicated MCA. This variation has been previously reported as segmental duplication of the MCA. This is the third case of this rare MCA variation reported in the relevant English-language literature. The term "segmental duplication" may be confused with duplicate origin of the MCA, in which only one artery is located distal to the fusion.
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