- —Early abscess (at 10 to 14 days). Formation of a collagenous capsule by fibroblasts is seen. The central necrotic area is liquefied. Surrounding edema persists.
Mature abscess (after 14 days). A decrease in surrounding edema
- —gliotic reaction at outer margin of the abscess capsule.
abnormal mri brain of abscess >> The wall of the mature abscess consists of three layers: (1) an inner inflammatory layer of granulation tissue containing macrophages, (2) a middle collagenous layer, and (3) an outer gliotic layer