Cardiomyopathy is a disease of the heart muscle, making it abnormal with no obvious cause. There are four main types of cardiomyopathy:
Hypertrophic cardiomyopathy (HCM)
Dilated cardiomyopathy (DCM)
Restrictive cardiomyopathy (RCM)
Arrhythmogenic cardiomyopathy (ARVC)