Rupture of splenic artery pseudoaneurysm presenting with massive upper gastrointestinal bleed.

Splenic artery pseudoaneurysms develop in as many as 10% of patients with acute pancreatitis. The diagnosis should be suspected in patients with pancreatitis who develop either upper gastrointestinal bleeding without an obvious cause or in whom a contrast-enhanced lesion is demonstrated within or adjacent to a suspected pseudocyst as determined by computed tomography scan.