ArticleJournal of surgical case reports2026
Gastric volvulus associated with preduodenal portal vein in right isomerism: a 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. Not yet cited in PubMed.
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Abstract
Preduodenal portal vein (PDPV) is a rare vascular anomaly associated with heterotaxy syndrome, typically presenting as duodenal obstruction in left isomerism. We report a 13-month-old male with right isomerism, single ventricle physiology, and asplenia who presented with postprandial vomiting. Computed tomography revealed a PDPV anterior to the pylorus, and upper gastrointestinal contrast study confirmed mesentericoaxial gastric volvulus. Surgery consisted of gastric derotation, ante-PDPV pyloroduodenostomy, and anterior gastropexy. The patient recovered uneventfully and remained asymptomatic at 9-month follow-up. To our knowledge, this is the first report of PDPV with right isomerism complicated by gastric volvulus. Absent gastric stabilizing ligaments in asplenia, combined with PDPV-related obstruction, may predispose to volvulus. Multimodal imaging and individualized surgical management are essential in this rare setting.
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