Type I

Little dissection or infiltration of the myocardium (direct rupture)

Type II

Multicanalicular trajectory with extensive myocardial dissection

Type III

Rupture is protected either by a thrombus at the orifice on the ventricular side or by a pericardial adhesion (pericardial symphysis)

Type IV

Incomplete as the trajectory does not traverse through all layers

(epicardial, endocardial, or intramyocardial rupture)