The Role of MSCT in Superior Mesenteric Artery Syndrome (SMAS).

Superior mesenteric artery syndrome (SMAS) is a rare condition caused by compression of the third part of the duodenum between the superior mesenteric artery (SMA) and the aorta, causing symptoms of duodenal outflow obstruction. We report a case of superior mesenteric artery syndrome in a 48-year-old female associated with severe dehydration and vomiting resulting from duodenal compression that necessitated surgical treatment, undiagnosed for 14 years. The diagnosis was performed with MSCT. Diagnostic evaluation revealed compression of the third portion of the duodenum by the SMA with resultant proximal dilatation. The patient successfully had duodeno-jejunal anastomosis.