Axial MRI section at the level of pons showing two bilateral symmetric foci of diffusion restriction involving reticular formation region, with a scheme of related pontine regions in the left hemi pons. Descending pyramidal tracts (green oval), medial longitudinal fasciculus (yellow oval), central tegmental tract (purple oval), reticular formation (light blue oval) containing raphe nucleus (red oval), gigantocellular nuclei (dark blue oval) and parvocellular nuclei (orange oval). The hypreintense lesion in the left reticular formation (white star) is likely corresponding to the medial pontine nuclei (gigantocellular nuclei).