Fig. 2From: A rare case of unilateral Cogan’s anterior internuclear ophthalmoplegia, upgaze palsy and ataxia caused by dorsal tegmentum lesion at pontomesencephalic junctionMRI brain of axial diffusion-weighted imaging sequences showed a hyperintense lesion at the left dorsal tegmentum of pontomesencephalic junction (a). MRA revealed narrowing at the P2 segment of the left posterior cerebral artery (b)Back to article page