The extent of neutrophilic infiltrates, along with karyolysis and loss of cytoplasmic cross striations, is typical for an acute myocardial infarct of 1 to 4 days in duration from onset.

• 中性粒细胞广泛浸润，核溶解、胞浆减少，是典型的急性心肌梗死的1-4天的表现。