Metastatic Melanoma Extending along the Pulmonary Vein into the Left Atrium: A Rare Route of Metastasis Characterized by Transesophageal Echocardiography

• Melanoma commonly metastasizes to the heart through hematogenous spread. • These metastases can resemble benign cardiac tumors. • Isolated left-sided cardiac involvement is rare with metastatic melanoma. • Metastasis can atypically take a course through the pulmonary vein. • Multimodality imaging is useful for characterization of these intracardiac masses.