PMC7307615_01
Transthoracic echocardiography. Apical four-chamber view, showing an echogenic large ball-shaped left atrial mass (yellow arrow), attached to the atrial roof (likely via a thin stalk), in proximity of the right upper pulmonary vein ostium, and floating within the left atrial cavity. LA, left atrium. LV = Left ventricle, RA = Right atrium, RV = Right ventricle
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LA cavity (LAC); the mass was attached to the atrial roof (likely through a thin stalk), in the proximity of the right upper pulmonary vein ostium. [Figure 1 and Video 1] This finding was attributed to a LAC thrombotic mass. Left atrial appendage (LAA) was not investigated by transesophageal echocardiography, due to the patient's critical condition.
Transthoracic echocardiography. Apical four-chamber view demonstrating the complete disappearance of the mass within the left atrial cavity. LA = Left atrium, LV = Left ventricle, RA = Right atrium, RV = Right ventricle
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A repeat echocardiogram, 2 days later, documented the complete disappearance of the mass within the LAC, [Figure 2] confirming its thrombotic nature and suggesting its systemic embolization.
Contrast-enhanced computed tomography showing a saddle thrombus (yellow arrow) at the distal abdominal aorta and at level of iliac bifurcation
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