Q. A 58-year-old man comes to the emergency department due to chest pain of one-hour duration. The patient is a diabetic and has a history of hypertension. He has no history of coronary vascular disease. Soon after arrival, the patient develops ventricular fibrillation and becomes unresponsive. He is declared dead after extensive resuscitation efforts. Autopsy reveals complete occlusion of the left anterior descending artery. Which of the following would be expected in the analysis of the myocardial muscle under a light microscope?