为了提高测定CEA诊断某些癌症的正确性,某些作者除了测定血中CEA外,还对测定生物液体(如脑脊液、胰液、胃液、尿)中的CEA发生了兴趣。最近证明支气管分泌液中有CEA。本文报告有关199例患者支气管吸出液中的CEA测定的研究。通过内窥镜抽取的支气管分泌物,用放射免疫法测定其中的CEA。其结果,原发性支气管肺癌的病例所测得的值,高 In order to improve the accuracy of the determination of CEA in the diagnosis of certain cancers, some authors have also developed interest in the determination of CEA in biological fluids such as cerebrospinal fluid, pancreatic juice, gastric juice, and urine in addition to CEA in blood. It has recently been demonstrated that CEA is present in bronchial secretions. This article reports the study of CEA determination in bronchial aspirate from 199 patients. Endoscopically extracted bronchial secretions were measured by radioimmunoassay for CEA. As a result, the values ​​measured in cases of primary bronchial cancer are high.