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胃癌很少从正常的胃黏膜上皮直接发生,通常需经历多年持续的癌前病变过程,对于癌前病变的及早识别和治疗,不失为防治胃癌的有效途径。2000年,国际癌症研究机构(IARC)出版的WHO肿瘤分类《消化系统肿瘤病理学和遗传学》一书[1],对胃肠道癌前病变和癌的诊断名称、定义和标准作了一
Gastric cancer rarely occurs directly from the normal gastric mucosal epithelium and usually needs to go through many years of persistent precancerous lesions. Early identification and treatment of precancerous lesions is an effective way to prevent and treat gastric cancer. In 2000, the WHO classification of tumors “Digestive system tumor pathology and genetics” published by the International Agency for Research on Cancer (IARC) [1] made a diagnosis of gastrointestinal precancerous lesions and cancer