PMC7244842_01
Global cardiac enlargement with dumping of right cardio-phernic angle
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F1
Chest x-ray revealed a dumping in the lower right cardiac border (Fig. 1). The cystic lesion closely attached to the surrounding cardiac structures, most probably representing a hydatid cyst (Fig. 1).
Intra pericardial cyst attached to right atrium
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F2
CT scan was added to imaging modality that showed a large para cardiac cystic mass closely related to cardiac structures (Fig. 2).
Intra operative view of pericardial cyst
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F3
There was mild sero-sanguineous pericardial effusion (Fig. 3).
Resected cyst with thick and inflamed wall
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F4
Its cavity contained necrotic, fibrinous, and thrombotic materials with some pasty like materials without the presence of the daughter cyst or typical germinal layer as seen in the HC (Fig. 4).
The cyst wall was composed of collagen, with scattered elastic fibers, and was lined by mesothelial cells with foci of hyperplastic mesothelial cells (H,E 100)
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F5
On histopathological exam, some evidence of necrotic, fibrinous and thrombotic material with an inflamed pericardial layer were found and no malignant tissue or cells were detected (Fig. 5).