Results 276 times of fibreoptic bronchoscopy biopsy combined with bronchial brush biopsy were performed in 269 patients, final diagnosis was obtained in 82 of them, with a diagnostic rate of 30.5%;

• 结果269例患者行超细支气管镜肺活检并刷检共276例次，获得诊断者82例，阳性率为30.；5%25(82/269)；