CTICasesPericardial Cyst Diagnosed by Dual-Energy CT
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Imaging findings
Contrast-enhanced CT of a 24-year-old male reveals an anterior mediastinal mass initially suspected of representing lymphoma or thymoma. Virtual non-contrast and iodine-overlay reconstructions from a dual-energy CT scan confirmed the absence of internal enhancement and fluid-like attenuation, avoiding a biopsy.
Key takeaways
Dual-energy CT can definitively characterize mediastinal lesions by using virtual non-contrast and iodine-overlay techniques to confirm the presence of simple fluid and the absence of internal enhancement, confidently diagnosing benign pericardial or thymic cysts without invasive biopsy.
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