Figure 2: Case 1: Transthoracic echocardiography images showing (a) subcostal view with red arrow pointing towards the mass in the atrioventricular (AV) groove, black arrow pointing towards the thickened right ventricle free wall and yellow arrow pointing towards the thickened interatrial septum. (b) Contrast image of the same patient in the subcostal view with arrow pointing towards the mass in the AV groove