内镜下黏膜下层肿物切除术(ESD)是一种新近发展的内镜下黏膜肿物切除 (EMR)技术,这种技术可完全切除小于2cm分化良好的黏膜层胃癌,对于不符合上述标准的早期胃癌(EGC),为预防淋巴结转移(LNM),一般采用胃切除术加淋巴结清扫。但是,许多可以外科手术治疗的EGC患者通常没有发生LNM,这就提示对于EGC 患者来说外科手术切除并非 Endoscopic submucosal excision (ESD) is a newly developed endoscopic mucosal resection (EMR) technique that completely resects well-differentiated mucosal gastric carcinoma less than 2 cm in size and does not meet the above criteria Of early gastric cancer (EGC), in order to prevent lymph node metastasis (LNM), the general use of gastrectomy plus lymph node dissection. However, many EGC patients who can be surgically treated usually do not develop LNM, suggesting that surgical resection is not for EGC patients