晚近有人提出,癌胚抗原(CEA)染色法对于胃肠道肿瘤特征的研究可能有用。作者等用抗CEA抗体通过间接免疫过氧化酶法染色研究胃及结、直肠癌组织切片中CEA染色阳性率可能存在的差异,以及癌的组织学分级、病变范围、肿瘤所在部位等与CEA染色阳性率的关系。材料和方法:研究材料为140例胃癌及54例结、直肠癌患者的癌肿组织,所有病例均经病理证实。 It was suggested recently that CEA staining may be useful for the study of gastrointestinal tumor characteristics. The authors used indirect immunoperoxidase staining with anti-CEA antibodies to study the possible differences in the positive rate of CEA staining in gastric, colorectal, and rectal cancer tissue sections, as well as the histological grade, lesion range, tumor location, etc., and CEA staining. The relationship between positive rates. Materials and Methods: The study materials were 140 cases of gastric cancer and 54 cases of colorectal cancer patients. All cases were confirmed by pathology.