Endoscopic diagnosis and treatment of gastric stump carcinoma ZHAN Xian-bao. Department of Gastroenterology, Changhai Hospital, the Second Military Medical University, Shanghai 200433, China Abstract Gastric stump carcinoma (GSC) is one of the main remote complications after gastrectomy. Periodical endoscopic examination is still the major tool in diagnosing early GSC. Newly developed endoscopies,such as magnifying endoscopy,chromoendoscopy, narrow banding imaging system, autofluorescence endoscopy, laser confocal endoscopy and endosonography, can show the details of gastric mucosa more clearly than routine endoscopy, which help detect early GSC significantly. Endoscopic mucosal resection and endoscopic submucosal dissection are becoming more mature and widely used, which profoundly improve the ability of endotherapy of early GSC.