临床研究表明,局限于黏膜层的早癌几乎没有淋巴结转移,局部切除就能随着消化道内镜治疗技术和器械的发展,到达根治目的。绝大部分的早癌、癌前病变甚至黏膜下肿瘤均可通过内镜治疗,内镜同时也成为治疗胃肠道良 Clinical studies have shown that localized mucosa of the early cancer almost no lymph node metastasis, local excision can with the digestive tract endoscopic treatment techniques and equipment development, reach the radical goal. Most of the early cancer, precancerous lesions or even submucosal tumors can be treated by endoscopy, endoscopy also has become a good treatment of gastrointestinal tract