Legend MRI Brain; Ax T2W (left) and Ax FLAIR (right): Diffuse increased signal in the white matter of both cerebral hemispheres.

Legend MRI Brain; Ax FLAIR: Diffuse increased signal in the white matter bilaterally. Focal hyperintensity in the left frontal lobe is from a needle biopsy.

Legend MRI Brain; Cor T1W (left top and bottom), and Ax T1W Post-Gd (right): The white matter abnormality is mildly hypointense and does not enhance. Key words: mri toxic demyelinating

Brain Diagnosis: Toxic encephalopathy from cytoxan therapy