case_images: PMC7682501_01
case_images: Electrocardiography on the first day of consultation showed complete heart block.
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case_images: Electrocardiogram showed CHB with a junctional escape rhythm at 44 bpm ( Figure 1).
case_images: Echocardiography showed the presence of a mass in the right atrium and septal leaflet of tricuspid (yellow arrow).. Hyperechoic areas were found in the annulus of tricuspid, lateral wall of right atrium and right ventricle, and interventricular septum (red arrows).
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case_images: Hyperechoic areas in the annulus of tricuspid, lateral wall of right atrium and right ventricle, and interventricular septum were also found in an echocardiogram ( Figure 2 and Figure 3).
case_images: Pericardial effusion was found in (
  A) anterior, posterior, (
  B) inferior, (
  C) base, and (
  D) left-lateral of the heart.
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case_images: f3
case_images: Hyperechoic areas in the annulus of tricuspid, lateral wall of right atrium and right ventricle, and interventricular septum were also found in an echocardiogram ( Figure 2 and Figure 3).
case_images: Chest X-ray on the 14
  th day of treatment showed left parahilar ground glass appearance with suspicion of lung metastasis and pleural effusion.. Pericardial fluid pigtail was already inserted for drainage of pericardial effusion.
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case_images: Further chest X-ray evaluation on the 14 th day showed left parahilar ground glass appearance with suspicions of lung metastasis and pleural effusion ( Figure 4).