作者为探讨某些临床症状的诊断价值和查明肺结核、慢性肺炎和肺癌的误诊原因,对477例患者进行了分析。经临床、X线、实验室、器械检查和部分患者结合病理组织形态学检查,诊断为肺结核220例(占46.2%),慢性肺炎202例(占42.3%)和肺癌55例(占11.5%)。上述三种疾病均以男性患者较多,特别是胚细胞瘤忠者,男性达81.1%。肺结核和慢性肺炎 The authors analyzed 477 patients in order to explore the diagnostic value of certain clinical conditions and to identify the causes of misdiagnosis of tuberculosis, chronic pneumonia and lung cancer. 220 cases (46.2%) of pulmonary tuberculosis, 202 cases (42.3%) of chronic pneumonia and 55 cases of lung cancer (11.5%) were diagnosed by clinical, radiological, laboratory and instrumental examination and some patients combined with histopathological examination. . The above-mentioned three diseases are more male patients, especially the blastocyst loyalty, up to 81.1% of men. Tuberculosis and chronic pneumonia