(A–C) Inferior vena cava, right atrium, right ventricle, and pulmonary artery mass excision. Gross pathology: elongated, tan, rubbery mass measuring 31 cm in length by 2.5 cm in diameter at one end and 0.7 cm in diameter at the other end. The external surface is tan and slightly lobulated. The cut surface is tan with a rubbery consistency. Also submitted is a fragment of a tan rubbery tissue with similar characteristics, as previously described, that measures 2.5×1.5×1.5 cm.