由于肺下叶结核的临床症状和X线表现不典型,常被误诊。本文报告我院肺科五年来对34例可疑肺下叶结核,应用纤维支气管镜检查的诊断价值。病例选择 (1)病程<30天,(2)痰涂片(阳性)3次以上,(3)正侧位片显示病灶在肺下叶,表现为密度不均的大片模糊或散在斑片状阴影,无空洞,上叶无病灶, As the symptoms of lower lung tuberculosis and X-ray findings are not typical, often misdiagnosed. This article reports the diagnosis of pulmonary tuberculosis in our hospital in the past five years for 34 cases of suspected sub-pulmonary tuberculosis, the application of fiberoptic bronchoscopy diagnostic value. Case selection (1) course of disease <30 days, (2) sputum smear (positive) more than 3 times, (3) the positive lateral radiograph showed the lesion in the lower lobe of the lung, the performance of large areas of uneven density or scattered patchy Shadow, no empty, no lesions on the leaves,