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Figure 4: Optic nerve in orbital magnetic resonance imaging. Encasement of the right optic nerve (marked as "R") by the fluid-filled Onodi cell (*) and the fluid-filled anterior clinoid process (+) is suspected on T2-weighted image (a); left optic nerve (L) is infiltrated by the anterior cranial fossa lesion (#) (b, T1 with enhancement and fat suppression), which are indicated in coronal view (c, T1 with enhancement and fat suppression, right optic nerve marked as "→," left optic nerve marked as "←") |
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