Fig. 1From: Fast growing angiosarcoma of the right atrium after radiofrequency catheter ablation: a missed diagnosis or misdiagnosis case reportEchocardiography revealed the changes of the mass before and after RFCA. a Before RFCA, transesophageal echocardiography (TEE) revealed a local thickening of the interatrial septum (*) near the root of aorta. b Transthoracic echocardiography (TTE) detected a large immobile, non-pedunculated mass (*) involving the interatrial septum 3 months after RFCA. c TEE revealed a large polymorphic tumor (*) infiltrating the right atrial walls with hypoechoic area (arrow) 3 months after RFCABack to article page