1概述笔者观察整理了115例胸外科住院患者病例，其中用例诊断为肺癌，26例诊断为肺部其他疾病。在115例中，诊断正确者99例（86％），其中81例为肺癌，18例为肺部其他疾病；诊断错误或不明确的有16例（13．9％），其中8例肺癌被诊断为其他疾病或诊断不明确，3例不是肺癌而被诊 1 Overview The author observed and summarized 115 cases of thoracic surgery inpatients, of whom the use case was diagnosed as lung cancer and 26 cases were diagnosed as other lung diseases. Among the 115 cases, 99 cases (86%) were diagnosed correctly, of which 81 cases were lung cancer and 18 cases were other diseases of the lungs; 16 cases (13.9%) were incorrectly diagnosed or unclear, of which 8 cases were diagnosed as lung cancer. Diagnosis is not clear for other diseases or diagnosis, 3 cases are not diagnosed as lung cancer