纤维支气管镜检查弥漫性病变的肺癌34例．总诊断率82．4％，未发生严重并发症。镜下主要表现为：肿块型病变9例，浸润型病变5例，管腔外压性狭窄4例，16例未见明显异常。认为：为提高诊断阳性率，应注意结合在视下活控、互支气管肺活检、刷检及支气管肺泡灌洗等方法取材。 Fiberoptic bronchoscopy examination of diffuse lesions in 34 patients with lung cancer. The total diagnosis rate was 82.4% and no serious complications occurred. The main manifestations were as follows: 9 cases with mass-type lesions, 5 cases with infiltrative lesions, 4 cases with extraluminal pressure stenosis, and 16 cases without obvious abnormalities. It is believed that in order to increase the positive rate of diagnosis, attention should be paid to the combination of visual biopsy, mutual bronchial lung biopsy, brush examination, and bronchoalveolar lavage.