心肌梗死大约3到4天可见许多急性炎症细胞浸润，心肌纤维坏死严重仅能见到其模糊轮廓。
This myocardial infarction is about 3 to 4 days old. There is an extensive acute inflammatory cell infiltrate and the myocardial fibers are so necrotic that the outlines of them are only barely visible.
