Isolated metastatic myocardial carcinoid tumor in a 48-year-old man.

This brief report describes an asymptomatic patient with a myocardial mass. Two-dimensional echocardiography, technetium Tc 99m cardiac nuclear scan, and transesophageal echocardiography were performed to define the mass. The mass, which involved the subvalvar right ventricular free wall, was resected and determined to be a metastatic carcinoid tumor by histologic and immunohistochemical analysis.