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1早期胃癌的定义及分型早期胃癌(early gastric cancer,EGC)这一概念最早由日本内镜学会1962年提出[1],定义为癌肿位于黏膜和黏膜下未达肌层,无论有无淋巴结转移。EGC又分为黏膜癌(M-Carcinoma,MC)及黏膜下癌(SM-Carcinoma,SMC)。早期胃癌的概念是就癌肿的浸润深度而言,在内镜就大小而言,与EGC相关的有小胃癌、微小胃癌、超微小癌三个概念。
1 Definition and classification of early gastric cancer The concept of early gastric cancer (EGC) was first proposed by the Japanese Society of Endoscopy in 1962 [1], which is defined as the cancer is located in the mucosa and submucosa of the muscle, with or without Lymph node metastasis. EGC is divided into mucosal carcinoma (M-Carcinoma, MC) and submucosal carcinoma (SM-Carcinoma, SMC). The concept of early gastric cancer is the depth of invasion of the cancer, the endoscopic size, EGC-related small stomach cancer, micro-gastric cancer, micro-cancer three concepts.