一、前言我们从60年代初对我局晚发性矽肺的发生发展进行观察研究,对其中94例资料完整的病例进行分析,并对一例晚发性矽肺患者死后进行病理检查。晚发性矽肺均经自治区和铁路局职业病诊断组确诊,患者在脱离矽尘危害后,在确诊前均有正常范围的胸片或确诊前两年有可疑 I. Preface We observed and studied the occurrence and development of late silicosis in our bureau from the early 1960s. We analyzed 94 cases with complete data and performed pathological examination on the death of a late silicosis patient. Late silicosis were diagnosed by the Autonomous Region and the Railway Bureau occupational disease diagnosis, the patient out of the risk of silicosis, the normal range before the diagnosis of chest X-ray or confirmed two years before suspicious