2021 Volume 46 Issue 6 Pages 655-661
A 70-year-old man who had undergone total gastrectomy and Roux-en-Y reconstruction for gastric cancer (M, Less, Type3, 92×78 mm, tub2>tub1, pT3N2 (6/78) M0 Stage ⅢA) 1 year 6 months prior was admitted to our hospital with abdominal pain, vomiting and diarrhea. Abdominal CT revealed intussusception at the site of the anastomosis. Emergency surgery was performed, and based on the intraoperative findings, the diagnosis of retrograde intussusception of the Roux-en-Y anastomosis towards the ligament of Treitz was made. After replacement by Hutchinson’s maneuver, and confirmation of improvement in the ischemic changes and absence of necrotic changes, the operation was completed without intestinal resection. Retrograde intussusception at the Roux-en-Y anastomosis is rare, but should be considered in the differential diagnosis of abdominal pain in patients with a history of gastrectomy.