Figure 3.

Dorsal (A) and transverse plane T2-weighted images at the level of the thalamus (B,C) of a dog with presumptive diagnosis of osmotic demyelination syndrome. There are bilateral and symmetric hyperintensities affecting the thalamus (long white arrows) (A–C) and extending into the subthalamus (dashed long white arrows) (C). A specific white matter region located immediately lateral to the internal capsule is also affected, corresponding with the superior longitudinal fasciculus (short black arrows) (B).