"PML related to natalizumab (Tysabri) is detectable prior to symptoms in 32/41 (78%) of cases. The authors advocate MRI surveillance, but a better approach in my opinion is avoiding the drug in high risk patients. Asymptomatic PML is often overlooked." - posted on Twitter by Dr. Brandon Beaber
https://jnnp.bmj.com/content/early/2...18-319208.long
https://jnnp.bmj.com/content/early/2...18-319208.long
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