The detection of left ventricle metastases is highly relevant because of the risk of severe adverse outcomes such as ventricular arrhythmia. We report herein the case of a 68-year-old man who presented with a ventricular tachycardia due to a myocardial metastasis from a renal cell carcinoma. The metastasis was embedded within the left ventricular lateral wall. It was identified on the basis of persistent F-FDG focal uptake following the ingestion of a high-fat, low-carbohydrate preparation.