Diagnostic and Therapeutic Dilemmas with Arrhythmic Right Ventricular Cardiomyopathy

The diagnosis of arrhythmic right ventricular cardiomyopathy (ARVC) can be difficult, particularly in patients who have early manifestations of the disease. Modification of the 1994 Diagnostic Test Task Force criteria has recently been published. The most frequent cause for misdiagnosis is incorrect interpretation of a cardiac imaging test, particularly magnetic resonance imaging. The results of genetic testing must be interpreted with caution. Genetic abnormalities may be absent in 50% of patients with ARVC and penetrance is variable.