Invasive carcinoid tumor of the heart

Carcinoid tumors have been described in almost every organ and may affect virtually every body system. Cardiac involvement manifesting as right-sided valvular disease is characteristic of the carcinoid syndrome; however, direct myocardial involvement is unusual. We present a case of an invasive carcinoid tumor whose primary manifestation was myocardial invasion. J. Surg. Oncol. 1997;66:264–266. © 1997 Wiley-Liss, Inc.