Endoscopic diagnosis of superficial non‐ampullary duodenal epithelial tumors in <scp>J</scp>apan: <scp>M</scp>ulticenter case series

Abstract

This multicenter case series study suggested that the number of resected SNADET is dramatically increasing in Japan. Tumor diameter >5 mm and red color seemed to be signs for tumors of HGD or SAC. Preoperative endoscopy may provide a more reliable diagnosis of final histology of HGD or SAC than preoperative biopsy. Further studies are warranted for establishing endoscopic features of submucosal carcinoma.