case_images: PMC10933053_01
case_images: Echocardiography revealed a hypoechoic mass extending from the right atrium to the right ventricle in September 2, 2022.
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case_images: PMC10933053_01_fcvm-11-1356134-g001.jpg
case_images: F1
case_images: The size of the mass was approximately 66 x 40 mm (Figure 1).
case_images: Preoperative enhanced computed tomography results for patient in September 2, 2022. (A) The cross-sectional image shows a mass in the right atrium, with irregular patchy enhancement in the right atrial appendage, right atrium, and right ventricular region, with a CT value of approximately 89 Hounsfield units. The interventricular septum is irregularly thickened. (B) Coronal view shows a mass in the right atrium, uneven opacification in some areas of the superior vena cava, delayed opacification of the inferior vena cava and veins in the right lobe of the liver.
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case_images: PMC10933053_01_fcvm-11-1356134-g002.jpg
case_images: F2
case_images: A suspicious low density shadow was observed at the edge of the upper and lower pulmonary arteries of the left lung; (4) the two lungs were dispersed with flaky shadows of increased density, the volume of the lower lobe of the left lung was reduced, a dense shadow was present in some lung tissues, and the enhancement was visible; (5) the bronchial segment of the left inferior lobe of the lung was slightly narrowed, while part of the bronchus of the left inferior lobe was unclear; (6) pericardial effusion, bilateral pleural effusion, left interlobar fissure, and adjacent lung hypoinflation; (7) the thoracic section of the esophageal wall was slightly thickened, approximately 0.4 cm; (8) swelling of left axilla, chest wall, and back soft tissue; (9) abdominal fluid, the local adipose space in the abdominal area was seen as lamellar and slightly high-density shadows; (10) multiple small veins in inferior vena cava and right lobe of liver were developed in advance; and (11) the adipose space in the abdominal cavity was blurred, with multiple pieces being increasingly flocculent, while the fascia around both kidneys was thickened (Figure 2).
case_images: Echocardiography results after surgical resection. (A) Echocardiogram results at October 19, 2022 indicated a hypoechoic mass with irregular shape measuring approximately 85 mm x 54 mm is observed from the right atrium to the right ventricle. The boundary between the mass and the tricuspid valve is unclear, and the mass infiltrates the interatrial septum, suggesting tumor recurrence (with an increased size compared to pre-surgery) and severe tricuspid valve stenosis. (B) Echocardiogram results at November 1, 2022 indicated irregularly shaped solid mass in the right atrium, measuring 25 mm x 21 mm, adhering to the septal leaflet and inferior interatrial septum, with enlargement of the left and right atria, dilation of the aortic sinus, and severe tricuspid regurgitation.
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case_images: PMC10933053_01_fcvm-11-1356134-g003.jpg
case_images: F3
case_images: On October 19, 2022, echocardiography revealed an enlarged left atrium and a hypoechoic mass extending from the right atrium to the right ventricle with an irregular shape and a size of approximately 85 x 54 mm was (Figure 3A). On November 1, 2022, echocardiography revealed the irregular shape of the right atrium, a solid mass measuring 25 x 21 mm, adhesion to the root of the tricuspid septum and lower atrial septum, enlargement of the left and right atria, widening of the aortic sinus, severe tricuspid regurgitation, and arrhythmia, with an ejection fraction of 71% (Figure 3B).