A Case of Pancreatic Arteriovenous Malformation with the Onset of Gastrointestine Bleeding

Abstract

Pancreatic arteriovenous malformation is very rare disease. We report a case of pancreatic arteriovenous malformation associated with duodenal ulcer. A 48-year-old man complaining of black stool was admitted to hospital. A gastrointestinal fiberscopic examination revealed a ulcer on oral side of the papilla of Vater. Abdominal contrast-enhanced CT showed hypervascular lesion in pancreatic head. Celiac and superior mesenteric arteriogram showed racemose vascular network in the head of pancreas and filling of portal vein in the early arterial phase. With a diagnosis of pancreatic arteriovenous malformation or hypervascular tumor, we underwent pylorus- preserving pancreaticoduodenectmy. Arteriovenous-malformation was diagnosed in pathology.