We report a unique case of obstruction of the upper gastrointestinal tract diagnosed in a 15-year boy presenting with a 6-month history of persistent abdominal pain, epigastric fullness, repeated episodes of vomiting, and significant weight loss. The computed tomography (CT) scan of the abdomen with intravenous and oral contrast demonstrated the angle between the aorta and superior mesenteric artery (SMA) to be 15° and revealed the stomach and duodenum to be massively dilated, leading up to a diagnosis of SMA syndrome, which was successfully operated. SMA syndrome is a challenging diagnosis and must always be included in the list of probable diagnoses causing obstruction of the upper gastrointestinal tract. Key Words: Upper gastrointestinal obstruction, Superior mesenteric artery syndrome, Small bowel obstruction, Duodenojejunostomy.
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