Dilated Cardiomyopathy Mimicking Arrhythmogenic Right Ventricular Cardiomyopathy in a 35-Year-Old Woman

While dilated cardiomyopathy (DCMP) typically involves the left ventricle (LV), it can also impact right (RV). Arrhythmogenic ventricular is a heritable myocardial disorder that mainly affects RV. A 35-year-old woman presented to emergency department complaining of chest discomfort and palpitations. The patient had ingested 100 g alcohol daily for more than 5 years. Transthoracic echocardiography showed dilation four cardiac chambers with global systolic dysfunction prominent recesses both ventricles. Non-sustained tachycardia was observed on 24-hour Holter monitoring. On magnetic resonance imaging (MRI), ratio between noncompacted compacted layers did not meet criteria non-compaction, delayed gadolinium enhancement only in inferior LV myocardium. Endomyocardial biopsy revealed no fibrosis or fatty changes. Consequently, diagnosis alcohol-induced DCMP reached. Various diagnostic modalities, including MRI biopsy, contribute accurate diagnoses.