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本文就早期胃癌的病理形态学及组织发生等有关问题作一介绍。一、早期胃癌的概念胃癌是由胃粘膜腺上皮恶变而来。早期胃癌是指癌瘤组织限于胃壁的粘膜层或粘膜下层。若癌瘤侵犯超越粘膜下层,称进展期胃癌,其生存率较早期胃癌显著降低。早期胃癌平均有9.1%发生区域淋巴结转移,尤以粘膜下层受累时转移率增高,故部分学者对粘膜下层受累者以称浅表型胃癌为合适,但Hirota等认为这种
This article gives an introduction to the issues related to the pathomorphology and histogenesis of early gastric cancer. First, the concept of early gastric cancer Gastric cancer is caused by malignant glandular epithelium of the gastric mucosa. Early gastric cancer means that the cancer tissue is limited to the mucosal layer or submucosa of the stomach wall. If the cancer invasion exceeds the submucosa, the advanced gastric cancer is said to have a significantly lower survival rate than early gastric cancer. An average of 9.1% of early gastric cancers have regional lymph node metastases, especially when the submucosa is involved. Therefore, some scholars are suitable for superficial gastric cancer in submucosal involvement, but Hirota et al.