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259 Cardiac Acute / Organized Myocardial Infarct w/ Mural Thrombus (Circulatory) Acute infarct characterized by an intense PMN infiltrate (intact and fragmented nuclei) between hypereosinophilic denucleated myocardial fibers. Where the acute infarct meets the endocardium is a mural thrombus characterized by layers of fibrin and WBCs and RBCs. ................
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