Progressive multifocal leukoencephalopathy and relapsing-remitting multiple sclerosis: A comparative study
Central Nervous System
Leukoencephalopathy, Progressive Multifocal
Magnetic Resonance Imaging
Multiple Sclerosis, Relapsing-Remitting
There appear to be differences between the clinical and MRI characteristics of PML and RRMS, which may help distinguish new MS activity from PML. Magnetization transfer ratio studies may provide additional clues in improving early detection of PML in patients with preexisting MS and warrant further investigation.