The solid homogeneousness enhancement along the splenium of corpus callosum and dorsal medulla, with diffusion restriction, is again noted, but is markedly less enhancing than before. Degree to T2 signal change has also reduced.
These effects are attributable to steroid administration.
Right parietal occipital burr hole with underlying hemosiderin stained biopsy tract is present, with site of biopsy within the enhancing splenial lesion.