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  • Title: [Autopsies of coal workers with chronic bronchitis].
    Author: Wang H, Li J, Zhao Y.
    Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 1998 Jul; 32(4):231-4. PubMed ID: 10322763.
    Abstract:
    OBJECTIVE: To study the pathological features of chronic bronchitis in coal miners. METHODS: Pathological specimens collected in postmortem examinations for 180 deceased coal miners were analyzed. RESULTS: Among the 180 deceased coal miners, there were 155 cases of chronic bronchitis, with a prevalence rate of 86.1%, mainly affecting bronchia and bronchiole. No correlation between chronic bronchitis and coal worker pneumoconiosis was found. The most apparent features of chronic bronchitis in coal miners include dust deposition and dust cell infiltration on the walls of bronchi at all levels, and dust fibrosis around the bronchial walls, with the most severe pathological change of dust deposition on the respiratory bronchiole. CONCLUSION: Most of the coal miners with chronic bronchitis (accounting for 80.0% of the total) manifested dust deposition and mixture of dust deposition and inflammation. Simple inflammatory bronchitis was rare.
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