Table 1

 Four morphological patterns of myocardial rupture4

INearly direct trajectory of rupture through the entire myocardium with little dissection or bloody infiltration of the myocardium
IIMulticanalicular trajectory with extensive myocardial dissection and bloody infiltration of the myocardium
IIIOrifice of rupture on the external surface of the myocardium protected either by thrombus or pericardial symphysis
IVIncomplete rupture; the trajectory does not extend through all layers of the myocardium and is therefore not transparietal