362例非实性肺小结节病例中,313例(86.5%)确诊为非典型腺瘤样增生(atypical adenomatous hyperplasia, AAH)/原位腺癌(adenocarcinoma in situ, AIS)、微浸润腺癌(minimally invasive adenocarcinoma, MIA)或浸润性腺癌,49例诊断为良性病变。年龄、血清肿瘤标记物癌胚抗原(carcino-embryonic antigen, CEA)和Cyfra21-1、肿瘤实性成分比值(consolidation tumor ratio, CTR)、分叶征和钙化被确定为独立危险因素。模型受试者工作曲线下面积为0.894。预测灵敏度为87.6%,特异度为69.7%,阳性预测94.8%,阴性预测值为46.9%。经验证模型预测价值显著优于VA、Brock和GMUFH模型。. The gene discussed is CEACAM5; the disease is adenocarcinoma.