原认为癌胚抗原(CEA)是恶性肿瘤和胚胎内胚层上皮组织的特异标记。有时在成人中胚层衍生组织中,能由放射免疫试验在血清中或由免疫组织化学在组织切片中检出一些CEA的产物。虽然,CEA的绝对特性已予否定,但在一定范围内,在复发肿瘤、肿瘤的组织来源或从良性肿瘤中区分恶性时,血清或组织中的CEA仍完全可能证明为有用标记。已在宫颈、宫内膜、卵巢来源的腺样恶性肿瘤及宫颈的恶性和癌前表 Formerly known as carcinoembryonic antigen (CEA) is a specific marker for malignant tumors and embryonic endodermal epithelial tissue. Sometimes in adult mesoderm-derived tissues, some CEA products can be detected in the tissue sections by radioimmunoassay in serum or by immunohistochemistry. Although the absolute nature of CEA has been negative, CEA in serum or tissue is still likely to prove a useful marker to a certain extent in relapsing tumors, tissue sources of tumors or distinguishing malignancy from benign tumors. Has been in the cervix, endometrium, ovarian adenoid malignancy and cervical malignancy and precancerous surface