Cardiac magnetic resonance features of dilated cardiomyopathy vs. left-dominant phenotypic variant of arrhythmogenic right ventricular cardiomyopathy. Dilated cardiomyopathy (A and B): end-diastolic frame of cine cardiac magnetic resonance sequence in four-chamber view showing severe left ventricular dilatation (A) with severe systolic dysfunction (not shown); post-contrast T1 inversion recovery sequence in short-axis view showing limited mid-wall late gadolinium enhancement in the anterior interventricular septum and infero-septal junction involving the adjacent infero-basal wall (white arrow) (B). Left-dominant arrhythmogenic right ventricular cardiomyopathy (C and D): post-contrast T1 inversion recovery sequence in four-chamber view showing a non-dilated (C) and hypokinetic (not shown) left ventricle; post-contrast T1 inversion recovery sequence in short-axis view showing a large amount of late gadolinium enhancement involving the interventricular septum and both anterior and inferolateral left ventricular walls (C and D).