Abstract
We encountered two cases of duodenal obstruction accompanying hematoma after pancreatic aneurysm rupture, and report them here with a discussion of the literature. Both patients visited with a chief complaint of abdominal pain, were diagnosed with rupture of a visceral artery aneurysm on computed tomography, and showed aneurysm in the pancreatic artery on angiography. One case was followed-up and one case underwent embolization, but both cases followed a favorable course. However, after discharge, abdominal pain and vomiting appeared, and duodenal obstruction was diagnosed in each case. Both improved with conservative treatment, and later followed a favorable course. Pancreatic aneurysm rupture can in some cases be followed by duodenal obstruction accompanying hematoma, and follow-up is thus regarded as necessary.