PMC9424608_01
Transthoracic echocardiography showed the cardiac mass (30 mm x 28 mm) located in the right atrium and the anterior tricuspid valve was partially obstructed by the mass but the flow velocity of tricuspid valve did not accelerate. (RA, right atrium; RV, right ventricle; TV, tricuspid valve).
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F1
The anterior tricuspid valve was partially obstructed by the mass, but the flow velocity of tricuspid valve did not accelerate (Figure 1).
(A,B) The cardiac magnetic resonance imaging showed that showed that a well-circumscribed, homogenous "shadow" in the right atrium; it measured 29 mm x 27 mm, had equal T1- and T2-weighted signal intensities, was adjacent to the tricuspid valve.
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F2
Cardiac magnetic resonance imaging (cMRI) showed that a well-circumscribed, homogenous "shadow" in the right atrium; it measured 29 mm x 27 mm, had equal T1- and T2-weighted signal intensities, was adjacent to the tricuspid valve (Figure 2).
(A,B) The 18F-fluorodeoxyglucose positron emission tomography combined with computed tomography showed that a dense circular shadow was in the right atrium abutting the tricuspid valve (32 x 34 mm), and there was no increase in glucose metabolism.
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F3
There was no increase in glucose metabolism, and the tumor was considered benign (Figure 3).
(A) The intraoperative image showed that the mass, with a firm-hard texture, was confirmed to be partially embedded in the right atrium. (B) The histopathological examination revealed that the mass consisted of abundant calcific deposits without malignant cells.
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F4
Without cardiac arrest, the right atrium was opened, and the mass, with a firm-hard texture, was confirmed to be partially embedded in the right atrium (Figure 4A). Histopathological examination revealed that the mass consisted of abundant calcific deposits without malignant cells (Figure 4B).