Diagnosis of pancreatic duct-portal vein fistula; a case report and review of the literature.

Pseudocysts containing activated enzymes are a common complication of pancreatitis. Pseudocysts can rupture into adjacent structures including the peritoneal cavity, adjacent organs, and rarely vascular structures. While arterial pseudoaneurysms and venous thrombosis or occlusion are well known complications of acute and chronic pancreatitis, only 17 cases of pancreas-portal venous fistula have been encountered in review of the literature. A patient with chronic pancreatitis presented with a history of weight loss, fatigue and was found to have a pancreatic duct-portal vein fistula. The patient was treated surgically with good outcome.