Prepancreatic postduodenal portal vein: a rare vascular variant detected on imaging.

Anomalous preduodenal portal vein is a rare abdominal vascular variant; even rarer is the prepancreatic postduodenal position. We report an anomalous portal vein positioned in between duodenum and pancreatic head detected on contrast enhanced computed tomography. Awareness and accurate radiological interpretation of this unique and rare vascular pattern can prevent inadvertent injury during surgical and radiological interventions.