ArticleJournal of surgical case reports2026
Anomalous positional relationship of the superior mesenteric vein relative to the superior mesenteric artery: a cadaveric case report.
Article in Journal of surgical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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1 citing paper in PubMed.
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The superior mesenteric vein (SMV) typically lies to the right of the superior mesenteric artery (SMA). We report a cadaveric case in which the SMV was positioned directly posterior to the SMA at the pancreatic head level, then crossed anteriorly to assume a left-sided position at the level of the third duodenal portion (D3). This specific configuration has been documented in isolated radiological reports only and has not, to our knowledge, been confirmed in a cadaveric study. The duodenojejunal flexure was in its normal position, establishing this as a primary isolated vascular variant unrelated to intestinal malrotation. Awareness of this variant is particularly relevant during pancreaticoduodenectomy, complete mesocolic excision with central vascular ligation, and radiological interpretation of mesenteric cross-sectional imaging.
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