Tehran University of Medical Sciences Acta Medica Iranica 0044-6025 53 5 2015 05 15 320 323 EN Ghodratollah Maddah Endoscopic and Minimally Invasive Surgery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. Abbas Abdollahi Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. Hamed Golmohammadzadeh Endoscopic and Minimally Invasive Surgery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. Mohsen Abdollahi Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. 2015 10 11 Pancreatic diseases are known to be associated with complications such as pseudocyst and abscess. A pseudoaneurysm associated with pancreatitis may develop as well. The pseudoaneurysm may rupture into various parts of the gastrointestinal tract; the peritoneal cavity, or the retroperitoneum. We report two cases of Hemosuccus pancreaticus admitted to our center in the past five years. One case was associated with acute pancreatitis, and another case was associated with chronic pancreatitis. A pseudocyst was found in two cases. Both were successfully managed by emergency surgery. So, Hemosuccus pancreaticus is a rare cause of gastrointestinal bleeding with difficult diagnosis, and surgery is the effective treatment for the patient with severe bleeding. However in cases with no life-threatening bleeding angiography and embolization can be performed. https://acta.tums.ac.ir/index.php/acta/article/view/4884 https://acta.tums.ac.ir/index.php/acta/article/download/4884/4496