我们应用OLyympusBF－10型纤支镜对58例在X线和超声波检查有中等量以上胸腔积液患者进行纤支镜检查，获病理学诊断。胸腔积液的病因较多，确诊率随着检查手段的多样化而提高，而纤维支气管镜检查和纤支镜代胸腔镜检查是最有效的诊断方法。1临床资料我院从1988年1月～1996年12月 We used OLyympusBF-10 fiberoptic bronchoscopy in 58 cases of X-ray and ultrasound examination in patients with pleural effusion moderate bronchoscopy, pathological diagnosis. The causes of pleural effusion more, the diagnosis rate increases with the diversification of examination methods, and bronchoscopy and bronchoscopy thoracoscopy is the most effective diagnostic method. 1 clinical data in our hospital from January 1988 ~ December 1996