School ager with emesis after posterior spinal fusion 8 months ago

CT of superior mesenteric artery syndrome
Axial CT with contrast of the abdomen (above) shows the dilated stomach anteriorly in the abdomen and the dilated duodenum posterior to it on the right side of the abdomen that then tapers in diameter as it reaches the superior mesenteric artery in the midline above the spine. Coronal image (below) demonstrates the tremendously dilated nature of the stomach and duodenal bulb.

The diagnosis was superior mesenteric artery syndrome.