Optic nerve/sheath manifestations. 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. Joel K. Curé et al. AJNR Am J Neuroradiol 2000;21:1110-1115 ©2000 by American Society of Neuroradiology