**7. Conclusion**

SMAS is a rare disorder and is under-diagnosed in our practice of medicine. It should be ruled out in the patients with postprandial abdominal pain, vomiting and weight loss. It is caused by compression of the third part of duodenum by the narrowed aortomesenteric angle. There are different predisposing factors but severe weight loss and cachexia, spinal deformities and congenital anomalies are some of them. SMAS is treated initially conservatively but laparoscopic duodenojejunostomy has high success rate as well.
