MS Speaks

This case seems to be of special interest because dimethyl fumarate-related PML occurred in someone 15 years younger than other cases of PML associated with that drug--"A case of progressive multifocal leucoencephalopathy under dimethyl fumarate without severe lymphopenia or immunosenescence"  from Multiple Sclerosis Journal (June 25, 2019):


https://journals.sagepub.com/doi/abs/10.1177/1352458519852100