５３例Ｘ线平片不典型支气管肺癌以片状、斑片状及条索状阴影居多（８３％）。其中４４例经纤支镜检查，直接表现肿瘤４３％，间接发现５６．８％。临床症状咳嗽、血痰分别占８３％、５６％，误诊为肺结核、肺内炎症者８４．９％。提示不典型支气管肺癌与肺结核、肺内炎症在Ｘ线平片、临床症状方面有共性而无特异性，易误诊，故应及早行纤支镜检查及纤支镜追踪复查。 53 cases of X-ray plain atypical bronchial lung cancer were mostly patchy, patchy, and cord-like shadows (83%). Among them, 44 cases were examined by fibrobronchoscopy, which showed 43% of tumors and 56.8% of indirect findings. The clinical symptoms of cough and blood stasis were 83% and 56%, respectively, and 84.9% were misdiagnosed as pulmonary tuberculosis and pulmonary inflammation. It is suggested that atypical bronchial lung cancer and pulmonary tuberculosis, pulmonary inflammation have common and non-specific features in X-ray film and clinical symptoms, and they are often misdiagnosed. Therefore, early bronchoscopy and bronchoscopy should be followed.