Which of the following is the earliest light microscopy finding in myocardial infarction: (A) Contraction band necrosis, (B) Hypereosinophilia, (C) Waviness of fiber, (D) Coagulative necrosis
Answer is C. Waviness of fiber is the earliest light microscopic finding seen within 30mins to 4 hours.
Earliest electron microscopy finding is mitochondrial swelling.