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FIG 1. Selected MR images through the head and orbits obtained at initial presentation, 3 years before histologic diagnosis.
A, Sagittal T1-weighted postcontrast image shows abnormal homogeneous enhancement extending posteriorly from the sella, along the clivus (single arrow). There is a 2.5-cm enhancing epidural mass seen at the level of the torcula (double arrows).
B, Axial T1-weighted postcontrast image reveals a focal enhancing epidural lesion displacing the posterior portion of the superior sagittal sinus anteriorly.
C, Axial proton attenuation-weighted image through the orbits shows hypointense bilateral intraconal mass lesions.
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