Question: A 47-year-old woman with no significant past medical history was referred with a 2-year history of intermittent postprandial epigastric pain associated with bloating. An esophagogastroduodenoscopy 2 years ago showed antral gastritis but her symptoms failed to respond to proton pump inhibitor. She sought a second opinion where a repeat esophagogastroduodenoscopy and ultrasound of the abdomen were again unremarkable. Computed tomography revealed the proximal jejunal loops clumped in left upper abdomen (FigureA, arrow) lateral to distal duodenum and posterior to the inferior mesenteric vein (FigureB, arrow) and ascending left colic artery (FigureC, arrow).