Retrograde jejunogastric intussusception following Braun's jejunojejunostomy.

Jejunogastric intussusception is a rare long term complication of Billroth II gastrectomy. The case reported here is a 50 year old man with history of a Billroth II gastrectomy and Braun's side-to-side jejunojejunal anastomosis who presented with hematemesis. On abdominal examination, there was a mass in the left iliac fossa. Computed tomography scan showed a retrograde jejunogastric intussusception across the gastrojejunostomy. On laparotomy, a retrograde intussusception of the distal jejunum through the jejunojejunal anastomosis and across the gastrojejunostomy with a gangrenous intussusceptum was found. The jejunojejunal anastomosis was taken down, the gangrenous segment was resected and bowel continuity was restored with two jejunojejunal anastomoses, proximal and distal to the gastrojejunostomy. The gastrojejunostomy was preserved. This case brings out an unusual type of retrograde gangrenous intussusception which occurred at two points of a previous anastomosis, i.e., jejunojejunostomy and gastrojejunostomy simultaneously, which could be managed with jejunal resection.