A CASE OF AFFERENT LOOP SYNDROME CAUSED BY MEMBRANOUS STENOSIS AT THE SITE OF ROUX-EN-Y JEJUNOJEJUNOSTOMY THAT WAS SUCCESSFULLY TREATED BY ENDOSCOPIC BALLOON DILATATION

Abstract

A 62-year-old man presented with a liver disorder 24 months after distal gastrectomy with a Roux-en-Y reconstruction for gastric cancer. CT imaging showed marked dilatation of the afferent loop, and he was diagnosed with afferent loop syndrome. Membranous anastomotic stenosis at the site of Roux-en-Y jejunojejunostomy, which had been reconstructed by the stapling technique with a circular stapler at the time of gastrectomy, could be identified by double-balloon endoscopy. Subsequently, the anastomotic stenosis was successfully resolved by endoscopic balloon dilatation. A rare case of afferent loop syndrome due to anastomotic stenosis after Roux-en-Y reconstruction by the stapling technique is described.