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胃镜应用于临床已有近百年的历史,特别近十年来,由于光导纤维胃镜的应用,可窥视、活检、细胞学检查和摄影,使胃部疾病的诊断水平有较大的提高。目前消化道恶性肿瘤,在整个恶性肿瘤的发病率中占较大的比例,而胃癌占整个恶性肿瘤的首位(男性),早期胃癌病灶局限于粘膜层或粘膜下层者其术后五年存活率各为93％和89％,如癌已侵及肌层则降为50—70％,如侵及浆膜层则仅8～17％,而微小早期胃癌术后
Gastroscope has been used clinically for nearly a hundred years. In the past ten years, due to the application of optical fiber endoscopy, it can be used for peeping, biopsy, cytology, and photography, which has greatly improved the diagnostic level of stomach diseases. At present, malignant tumors of digestive tract occupy a large proportion of the incidence of malignant tumors. Gastric cancer accounts for the first (males) of malignant tumors. Patients with early-stage gastric cancer are confined to the mucosa or submucosa. Each was 93% and 89%. If the cancer has invaded the muscularis, it is reduced to 50-70%. If it invades the serosa, it is only 8-17%.