PMC10161302_01
(A) Transthoracic echocardiography showed the cardiac mass (40 mm x 48 mm) located in the right atrium. (B) Computed tomography showed a hypointense shadow in the right atrium, considering a possible mucinous tumor; the atrium was enlarged.
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The patient was admitted to the hospital and the cardiac ultrasound examination (Figure 1A) showed that the right atrium was enlarged. Chest computed tomography (CT) examination (Figure 1B) showed a hypointense shadow in the right atrium, considered a possible mucinous tumor; the atrium was enlarged.
ECG suggests (1) atrial fibrillation, (2) ectopic rhythm, and (3) right bundle branch complete conduction block.. Abbreviation: ECG, electrocardiogram.
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Electrocardiogram (Figure 2) suggested AF, ectopic rhythm, and complete conduction block of the right bundle branch.