PMC6232616_01
Computed tomography scan of the chest showing the right lateralized mass (asterisk), beginning in the antero-superior pericardium up to the right atrium (white narrow) and right ventricle (dotted arrow).
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Echocardiographic examination revealed a solid mass surrounding the right cardiac chambers, and computed tomography of the chest confirmed the presence of a right lateralized 12 x 4 cm soft tissue mass beginning in the antero-superior pericardium recess down to the right atrium and right ventricle (Fig. 1).
Magnetic resonance imaging in T2 showing the intrapericardial mass with hypersignal (asterisk) surrounding the wall of the right atrium (white narrow) and ventricle (dotted narrow) with apparent cleavage plan. (A) Sagittal section. (B) Axial section.
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The magnetic resonance imaging (MRI) confirmed the presence of an intrapericardial mass, with hypersignal in T2, localized in the anterior and superior pericardial recess, with inferior extension along the interatrial groove, and free wall of the right atrium and ventricle, surrounding the right coronary artery, but with apparent cleavage plane (Fig. 2).
Tumor (asterisk) covering the surface of the right ventricle and right atrium. Aorta (black narrow).
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The mass was completely adherent to the right atrium, right ventricle, and right coronary artery (Fig. 3).
Macroscopic view of the biopsy taken from the tumor.
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The macroscopic examination of the cut surface revealed a large cystic space, with smaller spaces dispersed in a fibrotic wall (Fig. 4).