Germ cell tumour presenting as left atrial mass

A 33-year-old male presented with dry cough for 6 months and dyspnea on exertion for 3 months for which he was treated symptomatically by nearby physicians. On two-dimensional echocardiography, it revealed large left atrial mass occupying 2/3rd of the left atrium (LA) extending into the left lower pulmonary vein (PV). Then, his computed tomography of the chest was done, which revealed posterior mediastinal mass invading the left upper and lower lobe of the lung through the left main bronchus. The lesion also invaded the LA through the left PV. Biopsy was suggestive of nonseminomatous germ-cell tumor. This case is presented to demonstrate uncommon cardiac manifestations of secondary spread of testicular malignancy.