PMC7516707_01
Voluminous pericardial mass. Pericardium tumor with a density similar to fat on a computed tomography scan. Note that the tumor causes posterior displacement of the heart and signs of a reduction in the dimensions of the right heart chambers.
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The cardiac lesion extended from the upper to the lower thoracic region, displaced the heart backward, and reduced the right cardiac chambers (Figure 1).
Voluminous intrapericardial lipoma. (a) Gross examination:fatty lobulated massive tumor covered by a fine fibrous capsule. (b) Microscopy:delicate fibrous capsule delineates the mass. (c) Mature adipocytes form the tumor. No atypia is observed.
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At gross examination, the tumor was split into two irregular fatty fragments measuring 22.5 x 9.0 x 4.0 cm and 21.0 x 15.0 x 2.0 cm and weighing 635 grams (Figure 2(a)). The histological exam revealed an encapsulated neoplasm formed by mature adipocytes (Figures 2(b) and 2(c)).