7. Contraction Band Necrosis - High Power
Contraction bands are bright, eosinophilic bands of condensed
contractile proteins that run at right angles to the long axis of the
cardiac myocyte. They form in zones of myocardium irreversibly
injured by ischemia and then reperfused by angioplasty or clot-lysing
drugs such as Tissue Plasminogen Activator. Hemorrhage and
contraction bands are common in reperfused infarcts.
