case_images: PMC5379779_01
case_images: (a) Visual evoked potential showed delayed wave pattern in the right eye (b) Magnetic resonance imaging T1WI post contrast showing a hyper intense signal around the optic nerve, with intense enhancement around the optic nerve (c) Magnetic resonance imaging T1WI post contrast showing resolution of the abnormality seen in the earlier scan (d) Repeat visual evoked potential showing resolution of the delayed pattern as seen in earlier trace
case_images: AJNS-12-103-g001.jpg
case_images: PMC5379779_01_AJNS-12-103-g001.jpg
case_images: F1
case_images: Visual evoked potential (VEP) showed delayed wave pattern in the right eye [Figure 1a] while it was normal for the left eye. Computed tomography scan of the orbit with contrast enhancement showed suspected optic nerve space occupying lesions, magnetic resonance imaging (MRI) of the brain with contrast enhancement showed right side optic nerve was markedly thickened compared to the left side, there was a hyper intense signal on T2-weighted images around the nerve, with intense enhancement around the optic nerve [Figure 1b] especially in the posterior half and extending as far as the orbital apex. Her repeat MRI and VEP showed marked improvement when compared with the previous ones [Figure 1c and d].