Division of Neuroradiology, Department of Radiology, Vancouver General Hospital, 899 West 12th Avenue, Vancouver, British Columbia, V5Z 1M9, Canada.
Balo concentric sclerosis is a rare demyelinating disease. Pathognomonic features have been previously described. Diffusion-wighted imaging findings have not been previously described in Balo concentric sclerosis. We describe the diffusion-weighted imaging findings in a 45-year-old lady with Balo concentric sclerosis. Diffusion-weighted imaging offers insight into the possible pathophysiology of this rare disease.