Arrhythmogenic cardiomyopathy (AC) is a genetic disorder characterized by high risk of life-threatening ventricular arrhythmias, sudden cardiac death, and progressive heart failure. Currently, there is evidence that AC includes a spectrum of cardiomyopathy phenotypes, ranging from the classical form of arrhythmogenic right ventricular cardiomyopathy (ARVC) to more recently identified forms of arrhythmogenic left ventricular cardiomyopathy.