Cardiac Metastatic Melanoma Causing Ventricular Arrhythmias Through Impaired Coronary Artery Vasodilation.

Melanoma is an aggressive malignant disease with a high rate of cardiac metastasis. There is a reported association between myocardial tumor invasion and ventricular arrhythmias. We present a case of cardiac metastatic melanoma causing ventricular arrhythmias through a novel mechanism of encasement of coronary arteries leading to reduced myocardial perfusion. (Level of Difficulty: Intermediate.).