MRI
Sagittal T1
Axial FLAIR
Coronal T2
Axial T2 fat sat
Coronal T2 fat sat
Axial T1 fat sat
Axial T1 C+ fat sat
Coronal T1 C+ fat sat
Axial T1 C+
Swelling of the retrobulbar intra-orbital segment of the right optic nerve, extending to the intracranial segment up to the lateral aspect of the optic chiasma with high T2 signal well-visualized on coronal T2 fat sat with enhancement on postcontrast T1 fat sat sequences.
Normal appearance of the left optic nerve.
No demyelinating lesions were seen at infra-or supratentorial levels.