Fig. 1
From: Rapid cognitive decline in a patient with chronic lymphocytic leukaemia: a case report
(a) Axial T1-weighted magnetic resonance imaging (MRI) showing asymmetric hypointense areas in the bilateral frontal white matter (arrows). (b, c) They appear hyperintense on the corresponding T2-weighted and FLAIR sequences. (d) The lesions do not enhance following intravenous contrast administration. (e, f) A thin rim of diffusion restriction can be seen along the advancing edge of the lesion on the DWI images and the corresponding ADC maps (arrowheads)