A Rare Presentation of Isolated CNS Posttransplantation Lymphoproliferative Disorder

Figure 5

MRI after completion of rituximab and whole brain radiation (day 97). Rituximab started on day 63; cranial XRT started on day 70. Abnormal parenchymal enhancement in both cerebral hemispheres that have decreased in size. Increased hemorrhage in bilateral frontal and parietal lobe lesions. In the right frontal lobe there is a 15 mm rim-enhancing fluid collection. The edema surrounding most of the lesions has decreased in size. The left cerebellar lesion has decreased from 5 mm to 2 mm.