Pancreatic pseudocyst is a common complication of acute or chronic pancreatitis, developing in up to 15% and 40% of these groups of patients. 1 Complications of pancreatic pseudocyst include infection, splenic vein thrombosis, rupture of pseudocyst, and massive hemorrhage into the pseudocyst. 2 Gastrointestinal (GI) bleeding is an uncommon but possible complication of pancreatic pseudocyst. This complication could occur after a fistula formation from the pseudocyst to the internal hollow organs. 3 Either upper or lower GI bleeding is possible according to the location of the fistula formation. [4][5][6] The gastric bleeding can be caused by the gastrocystic fistula formation and intracystic bleeding. Intracys-
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