Pseudoaneurysm of the inferior phrenic artery presenting as an upper gastrointestinal bleed by directly rupturing into the stomach in a patient with chronic pancreatitis.

Pseudoaneurysms occurring in patients with chronic pancreatitis are associated with significant morbidity and mortality. These pseudoaneurysms occur more commonly in the splenic, pancreaticoduodenal, and gastroduodenal arteries. Upper gastrointestinal bleeding (UGIB) due to pseudoaneurysms in patients with pancreatitis with pseudocyst usually presents as hemosuccus pancreaticus. However, pseudoaneurysm directly perforating the gastrointestinal tract and presenting as UGIB is a rare complication. We report here the first case of UGIB from the inferior left phrenic artery pseudoaneurysm rupturing directly into the stomach of a patient with chronic pancreatitis.