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. 2016 Aug 2;3(5):e270. doi: 10.1212/NXI.0000000000000270

Figure 2. MRI in optic perineuritis.

Figure 2.

(A) Inflammatory lesion within the orbit encasing the right optic nerve. The lesion was biopsied and granulomatous inflammation identified. The optic neuropathy improved with steroids. (B, C) Optic perineuritis: T1-weighted axial and coronal MRI showing enlargement of and enhancement of the optic nerve and its sheath throughout its entire length. This was the presenting feature of the disease, which was diagnosed subsequently on histologic analysis of a cervical lymph node.