Recurrent Jejunojejunal Intussusception of the Common Limb in a Patient With Roux-en-Y Gastric Bypass: A Report of an Unusual Case and Literature Review.

Intestinal intussusception is a rare late complication of Roux-en-Y gastric bypass (RYGB), typically presenting without a lead point, often in a retrograde pattern, and most commonly involving the jejunojejunal anastomosis and common limb. We report the case of a 49-year-old female with a history of RYGB performed in 2000 and prior intussusception in 2010, who presented with an acute abdomen. Contrast-enhanced computed tomography demonstrated intestinal obstruction secondary to recurrent jejunojejunal intussusception, with associated signs of vascular compromise. The patient underwent exploratory laparotomy with successful manual reduction of an approximately 50 cm segment of the common limb, resulting in a favorable postoperative course. Although optimal surgical management remains debated, approaches combining reduction with fixation and revision of the jejunojejunal anastomosis may reduce the risk of recurrence. This case highlights the importance of maintaining a high index of suspicion for prompt diagnosis and management of this uncommon but significant late complication.