myofibrillar degeneration and dissociation of intercalated discs seen at 24 and 48 hours postirradiation were followed by gradual progression of myofibrillolysis and myofiber degeneration to myofiber atrophy , myofiber collapse and eventual progressive pericellular interstitial myocardial fibrosis .
C0684215
intercalated discs
C0027061
myocardial