脓肿是局限化的嗜中性粒细胞感染灶。图示心肌微脓疡。不规则深紫色的中央区聚集了大量细菌，此种细菌引起了脓肿的发生。
大体 | 镜下
An abscess is a localized collection of PMN's. Here is a microabscess in the myocardium. The irregular dark purple center is a collection of bacteria that are the cause for this abscess.
