有时细胞损伤会导致特定物质的沉积。图示：PAS染色肝切面可见红色水珠样物,发生于先天性α-I型抗胰蛋白酶缺乏病人。
Sometimes cellular injury can lead to accumulation of a specific product. Here, the red globules seen in this PAS stained section of liver are accumulations of alpha-1-antitrypsin in a patient with a congenital defect involving this substance.