Suitable lesions for endoscopic treatment include not only early colorectal carcinomas but also several types of precarcinomatous adenomas. It is important to establish practical guidelines wherein preoperative diagnosis of colorectal neoplasia and selection of endoscopic treatment procedures are appropriately outlined and to ensure that actual endoscopic treatment is useful and safe in general hospitals when carried out in accordance with guidelines. In cooperation with the Japanese Society for Cancer of the Colon and Rectum, the Japanese Society of Coloproctology, and the Japanese Society of Gastroenterology, the Japan Gastroenterological Endoscopy Society compiled colorectal endoscopic submucosal dissection/endoscopic mucosal resection guidelines by using evidence‐based methods in 2014. The first edition of these guidelines was published 5 years ago. Accordingly, we have published the second edition of these guidelines based on recent new knowledge and evidence.

中文翻译：

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结直肠内镜黏膜下剥离术/内镜黏膜切除术的 JGES 指南

适合内镜治疗的病变不仅包括早期结直肠癌，还包括几种类型的癌前腺瘤。重要的是建立实用指南，其中适当概述结直肠肿瘤的术前诊断和内镜治疗程序的选择，并确保根据指南进行实际内镜治疗在综合医院中是有用和安全的。2014年，日本胃肠内镜学会与日本结肠直肠癌学会、日本结肠直肠学会、日本胃肠病学会合作，采用循证方法编制了结直肠内镜黏膜下剥离术/内镜黏膜切除术指南. 这些指南的第一版于 5 年前出版。因此，我们根据最近的新知识和证据发布了这些指南的第二版。