Figure 6. Axial DWI (A) and ADC (B) demonstrating a new area of restricted diffusion in the splenium. There is evolving FLAIR hyperintensity in the left cerebellum with multifocal areas of incomplete suppression of CSF signal on FLAIR (arrowheads in C and D). Multifocal areas of leptomeningeal enhancement (arrows in E, F) particularly in the posterior fossa.
DWI: diffusion-weighted imaging; ADC: apparent diffusion coefficient; FLAIR: fluid-attenuated inversion recovery; CSF: cerebrospinal fluid.