Toddler with abdominal distension 2 days after gastrojejunostomy tube placement

AXR and gastrojejunostomy tube injection of pneumoperitoneum due to malposition of the gastrojejunostomy tube outside of the bowel
Supine (above left) and left lateral decubitus (above right) AXR show no evidence of air between the abdominal wall and the liver but on the decubitus view several concerning air bubbles project over the liver and appear extra-lumenal. The gastrojejunostomy tube was exchanged for a gastrostomy tube and AP image from a gastrostomy tube injection with water soluble contrast (below) shows contrast extravasating inferiorly out of the duodenum at the junction of the second and third parts of the duodenum.

The diagnosis was initial malposition of the gastrojejunostomy tube outside of the bowel. In the operating room a perforation was found in the 4th part of the duodenum.