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Fig 2. A 28-year-old man presents with a mediastinal mass on a chest x-ray for further work-up.
A, Axial contrast-enhanced CT scan of the chest demonstrates multiple nonenhancing cystic lesions in the mediastinum.
B, Axial contrast-enhanced CT scan of the neck at the level of the orbits demonstrates bilateral nonenhancing retrobulbar low-attenuation lesions.
C, Axial contrast-enhanced CT scan of the neck viewed at bone window settings demonstrates multiple lytic lesions of the occiput and upper cervical vertebrae.
D, Axial contrast-enhanced CT scan of the abdomen demonstrates multiple nonenhancing cystic lesions in the peritoneum.
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