Cardiac MRI after Sudden Cardiac Arrest in a Young Woman Prompts Diagnosis of Familial Dilated Cardiomyopathy.

Teaching Point: Familial dilated cardiomyopathy (DCM) predisposes to malignant ventricular arrhythmias and sudden cardiac death, and magnetic resonance imaging (MRI) has important diagnostic value in demonstrating non-ischemic patterns of late gadolinium enhancement (LGE).