Which of the following type of cells are predominantly seen in the myocardial tissue within 48 hours of MI?: (A) Macrophages, (B) Neurophils, (C) Fibroblasts, (D) Monocytes
Answer is B. 24-48 hours following MI, neutrophilic infiltration is noted predominantly in the border of cardiac myocytes. Large number of neutrophils are seen after 3-5 days. Macrophages are the predominant cell group seen 6 - 10 after MI. Reference: Robbins Pathology, 6th Edition, Page 558