Toward the end of the first week, healing of a myocardial infarction becomes more prominent. Seen here is ingrowth of capillaries along with fibroblasts and macrophages filled with hemosiderin. The granulation tissue seen here is found in abundance from 10 days to 3 weeks following onset of infarction, with a peak around 1 to 2 weeks. Cardiac troponin markers may still be present in the blood up to weeks following the initial ischemic event.