Figure legends:
Figure 1. Electrocardiogram (A) 9 days before admission, and (B) at emergency department with tachycardia and biatrial enlargement.
Figure 2. Computed tomography angiogram of (A) axial and (B) coronal slices shows saddle embolism.
Figure 3. Echocardiography of (A) apical 4-chamber view with a sausage-like thrombus in the right atrium straddle the patent foramen ovale which was consistent with thrombus-in-transit, and (B) color Doppler showing tricuspid regurgitation jet hitting the thrombus. Red arrows show thrombus.
Video 1. Echocardiography of apical 4-chamber view showed the right ventricular dilatation and hypokinesia with classic McConnel’s sign. There was a sausage-like thrombus in the right atrium straddle the patent foramen ovale which was consistent with thrombus-in-transit.
Video 2. Echocardiography with color Doppler zooming up the right atrium. There was tricuspid regurgitation jet directing toward the thrombus.