THE FIRST CASE OF real-time 3-dimensional (3D) transesophageal echocardiography (TEE) imaging of an intracardiac mass is reported. Histologic examination later confirmed the diagnosis of endomyocardial fibrosis (EMF). The utilization of real-time 3D imaging to improve the understanding of the precise anatomic location and the dynamic relationship between this rare intracardiac mass and the surrounding anatomic structures during the cardiac cycle is described. Additionally, a brief review of EMF is provided.