PMC6556248_01
Chest radiography shows an enlarged cardiac silhouette.
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A 57-year-old asymptomatic man with no significant past medical history was found to have an enlarged cardiac silhouette on a routine chest radiograph (Figure 1).
Coronal (a), sagittal (b), and transverse (c) views of thoracic MRI show a 9 cm pericardial cyst located at the right cardiophrenic angle compressing the right atrium.
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Magnetic resonance imaging (MRI) revealed a 9 cm pericardial cyst in the right cardiophrenic angle that was associated with right atrial compression (Figures 2(a), 2(b), and 2(c)).
Intraoperative images show the pericardial cyst before (a and b) and after (c) resection.
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The pericardial cyst was found to be firm, and had some calcifications on the surface (Figures 3(a), 3(b), and 3(c)).
Brown murky fluid aspirated from the pericardial cyst.
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Approximately 300 ml of brown, murky, nonodorous fluid was aspirated from the cyst before it was completely resected (Figure 4).