FIGURE LEGENDS
Fig. 1 Computed tomography showing large left atrial thrombus with calcification attached to the atrial septum
Fig. 2 Transthoracic echocardiography showing large left atrial thrombus attached to atrial septum
Fig. 3 Intraoperative image of the large left atrial thrombus adhering to and being removed from the left atrium
Fig. 4 Pathophysiology specimen showing thrombus components and Zahn line composed of fibrin indicating the process of long thrombus formation. No tumor component is observed in the thrombus.