How to diagnose superior mesenteric artery aneurysm correctly for radiologists?
A recent case report published on May 14, 2010 in World Journal of Gastroenterology describes the imaging features of a ruptured superior mesenteric artery aneurysm,which created a giant hematoma and mimicked a pancreatic mass, with mild dilatation of main pancreatic duct. Previous studies have shown how pancreatic disease can be simulated by various anatomical structures in the retroperitoneal region at the pancreatic level. Aneurysm of the hepatic artery, for example, simulates pancreatic disease, even with the possibility of choledocus compression. In the case, mild compression of the main pancreatic duct by the aneurysm sac could also explain the minimally increased values of amylase and lipase activity discovered through laboratory tests, which initially physicians interpreted as symptoms of pancreatic disease. The radiologist who first described multidetector computed tomography and magnetic resonance imaging signs did not explore the vascular structures with multiplanar reconstr
