CTICasesPericardial Cyst
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Imaging findings
An incidental mogul-like opacity on a chest radiograph in the lower mediastinum correlated with a unilocular cystic lesion on CT. The cyst was located in the anterior mediastinum, connected to the pericardium in the anterior recess, and was unchanged over several years (since 2012).
Key takeaways
Pericardial cysts are benign, common incidental mediastinal lesions, often located in the cardiophrenic angles or anterior mediastinum. They are typically unilocular, fluid-filled, and can be recognized by their characteristic location and stable appearance over time, requiring no further intervention.
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