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:
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
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