Retrograde intussusception after Roux-en-Y hepaticojejunostomy for choledochal cyst

The authors report the first documented case of a retrograde jejunojejunal intussusception after a Roux-en-Y hepaticojejunostomy for choledochal cyst in a 2-year-old girl. She suffered from obstructive jaundice and ileus; the jaundice was alleviated but the ileus worsened after conservative treatment, and abdominal computed tomography demonstrated an intussusception and gangrene of the bowel. Surgery confirmed the presence of a retrograde jejunojejunal intussusception at the previous end-to-side anastomosis, with a dilated Roux limb and proximal duodenojejunal segment. Intestinal obstruction in a jaundiced child following Roux-en-Y anastomosis may be due to a retrograde intussusception as well as a stricture of the hepaticojejunostomy or adhesive ileus.