PMC5437444_01
MRI of the brain with and without contrast. a T1 precontrast axial image without obvious abnormalities. T1 postcontrast axial (b) and coronal (c) images with leptomeningeal enhancement. d-f T2 FLAIR sequence axial cuts with diffuse hyperintensities in the white matter and basal ganglia.
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F1
Repeat MRI with and without gadolinium at this point demonstrated diffuse T2 hyperintensities in both cerebral hemispheres, basal ganglia, and brainstem, as well as new bilateral leptomeningeal enhancement (Fig. 1).