矽肺是由于吸入大量二氧化矽所引起的纤维增生的疾病,肺中有二氧化矽颗粒沉着及矽结节存在,以致病人呼吸困难丧失劳动力。这种病严重地影响接尘工人的健康。矽肺的发病过程包括(1)二氧化矽颗粒(直径在5微米以下)进入肺泡,被巨噬细胞吞噬。(2)巨噬细胞被二氧化矽破坏,以致细胞死亡,并将二氧化矽及其它内容物释放出来,二氧化矽再被吞 Silicosis is a disease of fibrosis due to the inhalation of a large amount of silicon dioxide, the presence of silica particles in the lungs and the presence of silicone nodules, which leads to loss of labor to the patient’s breathing difficulties. The disease has a serious impact on the health of dust collectors. The pathogenesis of silicosis includes (1) silica particles (less than 5 microns in diameter) entering the alveoli and phagocytosed by macrophages. (2) macrophages are destroyed by the silicon dioxide, resulting in cell death, and the release of silicon dioxide and other content, the silicon dioxide and then swallowed