纤维支气管镜 (纤支镜 )检查已作为诊治呼吸系统疾病的有效手段 ,但在不明原因胸水诊断中的应用评价不一。 1992年以来笔者用纤支镜检查 5 1例经常规检查原因不明的单纯性胸水。现报告如下。1　材料和方法1·1　一般资料　从 1992年 4月～ 2 0 0 2年 2月用纤支镜检查方法 ,检查 Fiberoptic bronchoscopy (bronchoscopy) has been diagnosed as an effective means of diagnosis and treatment of respiratory diseases, but in the diagnosis of unexplained pleural effusion of different evaluation. Since 1992, I used fiberoptic bronchoscopy 5 1 cases of routine examination unexplained simple pleural effusion. The report is as follows. 1 Materials and Methods 1.1 General Information from April 1992 ~ February 2002 with fiberopticoscopy, inspection