Parkinsonism as a manifestation of multiple sclerosis

We describe a 48‐year‐old patient, with a diagnosis of relapsing–remitting multiple sclerosis, who presented to our service with a parkinsonian syndrome that markedly improved after corticosteroid treatment. To the best of our knowledge, only 12 cases of parkinsonism have been reported from 1970 to the present, of which only 8 seemed secondary to MS, i.e., those presenting conclusive imaging evidence or unequivocal response to corticosteroids. © 2002 Movement Disorder Society