慢性尘源性支气管炎主要表现为呼吸器官的结构改变。本文对32例矽肺和矽肺结核患者进行了支气管镜检研究。年龄30～60岁。他们是耐火砖厂、铸造厂、机械制造厂、冶金矿山和煤矿工人。接尘工龄10～20年者57.6%,20年以上者23.3%,10年以下者19.1%。检查采用 Olympus BF—2型支气管纤维镜。通过检查发现、矽肺和矽结核病人气管、支气管呼吸功能降低或消失者占77.2%,细小支气管出现阳性体征占60.8%, Chronic Dermatitis Bronchitis mainly manifested as structural changes in respiratory organs. In this paper, 32 patients with silicosis and silicosis tuberculosis bronchoscopy. Age 30 to 60 years old. They are refractory brick factories, foundries, machinery factories, metallurgical mines and coal miners. Dust-taking workers aged 10 to 20 years, 57.6%, 23 years more than 20 years, 19.1% less than 10 years. Check with Olympus BF-2 bronchoscopy. Through the inspection found that silicosis and tuberculosis patients tracheal bronchial respiratory function decreased or disappeared accounted for 77.2%, bronchial positive signs accounted for 60.8%