Fig. 36

Roux-en-Y anastomosis. UGIS with water soluble contrast of a patient who underwent partial gastrectomy with Roux-en-Y anastomosis for an adenocarcinoma of the stomach (a): only the gastric stump (curved arrow) and gastro-jejunal loop are opacified (arrows); the biliopancreatic loop is not (asterisks in its supposed location). Fluoroscopic study with water soluble contrast of an obese woman who underwent gastric bypass with Roux-en-Y anastomosis (b): note the jejunal mucosal pattern (arrowheads) right after the supposed location of the gastro-jejunal anastomosis (asterisk). Abdominal CT of the same patient (c): the surgical clips are seen at the anastomosis between the gastric stump (arrows) and the jejunal loop (arrowheads). CT coronal reformation (d) shows the gastro-jejunal anastomosis (arrowhead) and the biliopancreatic limb, which includes the duodenum in its normal location (arrows)