FIG 4.
Comparison of extra cranial aVP detection in a participant with MS with previous unilateral AON on the left side (patient with MS No. 0038). A1–3, A very small, asymptomatic DL partially involving the superolateral aspect of the right iOrb segment (arrowheads on coronal, sagittal-oblique, and axial-oblique images) was missed on the 2D-T2-STIR image (B). A larger L iOrb lesion was instead detected by both sequences (thin arrows in A1, A3 and B), possibly representing chronic changes related to the previous AON.