PMC8316586_01
PMC8316586_02
Echocardiographic images from the subcostal window showing the tumor mass in the right atrium (A,B). Obstruction in the output of the right atrium and reduced blood flow to the right ventricle (C).
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F1
Echocardiography was performed and showed a large tumor formation in the right atrium 2 x 2.3 cm, reduced blood flow into the right ventricle and pulmonary artery, and minimal pericardial effusion (Figure 1).
PMC8316586_03
Macroscopic appearance of the extirpated tumor formation.
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F2
The pathological assessment of the intraoperatively extirpated tumor described a gross structure of lobulated masses with white-pink translucent tissue, with a myxomatous appearance and soft flexible texture (Figure 2).
Histologic specimen acquired from the tumor mass, light microscopic examination (Hematoxylin-Eosin stain), 40x magnification (A), and 100x magnification (B).
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F3
These findings corresponded to leiomyosarcoma (Figure 3).