A 60 year old male presented with acute chest pain of 4 hours duration. Electrocardiographic examination revealed new Q wave with ST segment depression. He succumed to his illness within 24 hours of admission. The hea revealed presence of a transmural haemorrhagic area over the septum and anterior wall of the left ventricle. Light microscopic examination is most likely to reveal:
Patient had a myocardial infarction, histology of the cardiac muscle fibres done at 24 hours after an MI shows necrotic myofibres with presence of neutrophils. Ref: Robbins Pathology, 6th Edition, Page 558
Edema in between normal myofibres
Necrotic myofibres with presence of neutrophils
Coagulative necrosis of the myocytes with presence of granulation tissue
Infiltration by histiocytes with haemosiderin laden macrophages