NMO flare: left eye pain, blurry vision. There is mild residual T2 hyperintensity throughout much of the left optic nerve, which now appears mildly atrophic. There may be mild enhancement versus artifact in the canalicular portion of the left optic nerve. There is also mild diffuse atrophy of the right optic nerve. Furthermore, the optic chiasm appears to be atrophic and displays high T2 signal. The bilateral globes and ocular adnexa are unremarkable. There is no evidence of abnormal intraorbital mass lesions. The imaged portions of the brain parenchyma are unremarkable. There are small retention cysts in the bilateral maxillary sinuses and mild mucosal thickening in the ethmoid sinuses.
1. Sequela of prior optic neuritis involving the left optic nerve, with possible mild enhancement versus artifact in the canalicular portion of the left optic nerve. 2. Mild right optic nerve atrophy.