We describe a young woman with Burkitt's lymphoma, treated with intravenous
adriamycine and cyclophosphamide and intrathecal cytarabine. She developed
a reversible posterior leukoencephalopathy syndrome (RPLS) with typical MR
I findings. Diffusion-weighted images during the first days after the onset
of symptoms predicted a small irreversible lesion in the frontal lobe, ver
ified on T2-weighted images 1 month later. The patient showed full recovery
after high-dose steroid treatment.