Unusual deterioration in a patient with multiple sclerosis on natalizumab therapy

Affiliation

• ¹ Department of Neurology (T.G., C. Enzinger, M.K., P.S., A.P., F.F.), Division of Neuroradiology, Department of Radiology (C. Enzinger), Division of Rheumatology and Immunology, Department of Internal Medicine (W.G.), and Department of Neuropathology, Institute of Pathology (C. Ernst, J.H.), Medical University of Graz, Graz, Austria; and Neurorehabilitation Clinic Kapfenberg (A.M.), Kapfenberg, Austria.