支气管肺泡灌洗（BAL）不仅对肺间质性疾病有诊断、鉴别诊断的价值，而且可动态评价特发性肺纤维化肺泡炎性程度，并对其预后判断有一定价值。1资料与方法本组30例特发性肺纤维化（IPF）患者，均经纤维支气管镜肺活检确诊。男14例，女16例，平均年龄54．7岁（31～71岁）。20例 Bronchoalveolar lavage (BAL) is not only the value of diagnosis and differential diagnosis of interstitial lung disease, but also can evaluate the degree of alveolar inflammation of idiopathic pulmonary fibrosis dynamically and has certain value in the prognosis. 1 Materials and Methods The group of 30 patients with idiopathic pulmonary fibrosis (IPF) were diagnosed by bronchofibroscopic lung biopsy. There were 14 males and 16 females, with an average age of 54.7 years (31-71 years). 20 cases