Introduction Superior mesenteric artery syndrome is a rare cause of upper intestinal obstruction due to a compression of the third portion of the duodenum between aorta and superior mesenteric artery. Case presentation we report a case of 17 years old male patient which have a low body mass index. The diagnosis was confirmed by typical finding of the abdominal scan. Surgery was necessary after failure of initial conservative management. Conclusions This case of superior mesenteric artery syndrome to be implicated to the majority of patients without history of weight loss and the superiority of Duodenojejunostomy compared to gastrojejunostomy.
