MRI images of CMV encephalitis before and after U-DLI. (A) Axial T2 fluid-attenuated inversion recovery (FLAIR) images demonstrate 3 new white matter lesions, increased signal, and edema in the periventricular region most notable around the third ventricle and medulla (white arrows). (B) Axial FLAIR images demonstrate resolution of previously described lesions and increased signal/edema 6 months after the initial U-DLI.