FIG 2. Optic nerve/sheath manifestations.

A, Prominent optic nerve sheath dilatation, ADOP I. Axial T2-weighted FSE image shows scalloped inner table. The optic canals are not stenotic.

B, AROP. Axial T2-weighted FSE image shows optic canal stenosis and optic nerve atrophy.

C, IOP. Axial T2-weighted FSE image shows optic canal stenosis and optic nerve atrophy, with more severe atrophy evident on the right in this case.