duodenal obstruction superior mesenteric artery syndrome MESH:D013478 SNOMEDCT:197006009 DOID:3557 Superior mesenteric artery syndrome (disorder) Superior Mesenteric Artery Syndrome Sirarat Sarntivijai Superior mesenteric artery syndrome NCIt:C85175 DUODENAL OBSTRUCTION by the superior mesenteric artery (MESENTERIC ARTERY, SUPERIOR) which travels in the root of the MESENTERY and crosses over the DUODENUM. The syndrome is characterized by the dilated proximal duodenum and STOMACH, bloating, ABDOMINAL CRAMPS, and VOMITING. Often it is observed in patient with body casts after spinal surgery. MedDRA:10054156