Hemobilia related to cystic artery pseudoaneurysm as a cause of acute pancreatitis.

Hemobilia is a rare cause of upper gastrointestinal bleeding (UGIB). It is commonly iatrogenic, and is more rarely caused by tumors, lithiasis, and inflammatory or vascular disease. We describe a case of cystic artery pseudoaneurysm, which caused acute pancreatitis as an unusual complication.