Figure 1: Magnetic resonance images performed 1 day after the stroke event. We can see a right medial mesencephalic lesion that exhibits restricted diffusion in diffusion-weighted imaging (a), hypointense signal in T1 sequence and hyperintense signal in coronal T2-fluid attenuated inversion recovery image (b). The appearance of the lesion described in the images is highly suggestive of an acute mesencephalic infarct