Metastatic Melanoma Presenting as a Ventricular Arrhythmia.

Melanoma is a highly aggressive disease with the risk of developing metastasis to virtually all organs including the heart, which can manifest as arrhythmia, right ventricular obstruction, heart failure, or pericardial effusion. Only a few reports are found in the literature of metastatic melanoma, causing ventricular arrhythmia. Prior to the advent of contemporary therapies, cardiac metastases implied a very poor prognosis. The use of immune checkpoint inhibitors and targeted therapy has greatly improved survival outcomes of metastatic melanoma. Aggressive therapy of cardiac metastasis including cardiac surgery can yield good outcomes. We present a case of a 57-year old gentleman with metastatic melanoma and cardiac involvement who initially presented as a ventricular arrhythmia and was successfully treated with immune checkpoint inhibitors and targeted therapy.