PMC7640600_01
Left-sided Wilms' tumor extending through the inferior vena cava and filling the right atrium: appearance on computed tomography imaging (A) and echocardiography (B).
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PMC7640600_02
Right-sided Wilms' tumor extending and filling the inferior vena cava and the right atrium with extension through the tricuspid valve as demonstrated by computed tomography imaging (A) and echocardiography (B).
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Furthermore, echocardiography showed tumor extension to the RV through TV (Fig. 2).