长时间的脓肿可能是慢性炎症的一个因素。图示：右肺中叶慢性脓肿。
An abscess may have elements of chronic inflammation if it persists for some time. Thus, it is possible to have a "chronic abscess" with elements of both acute and chronic inflammation. Seen here in the right middle lung lobe is jus such a chronic abscess.