DSG2 and Ventricular arrhythmia: morpho-functional ventricular abnormalities, structural myocardial abnormalities, repolarization abnormalities, depolarization abnormalities, ventricular arrhythmias, and genetics. Though our patient did not have genetic testing, we strongly recommend early genetic testing for both the index patient and family members in the case of suspected ACM to reduce life-threatening situations since there are possible mutations that can cause ACM, for example, the DSG-2 nonsense mutation, which causes early-onset ACM [42].