偏振光显微镜可见大多数尘肺的病原(甚至对于那些煤矿工人)--二氧化硅晶体。图示为大小不一的亮白色晶体。巨噬细胞吞噬二氧化硅诱发纤维组织增生，产生胶原纤维沉积结节。
By polarized light microscopy can be seen the etiology for most pneumoconioses (even those in coal miners)--silica crystals. Here are seen bright white crystals of varying sizes. The silica induces a fibrogenic response by macrophages to produce the nodular foci of collagen deposition.
