The effect of oral corticosteroid dosage on CT enhancing multiple sclerosis plaques.

Fifty high-dose delayed CT scans were performed on 36 patients with definite MS within 4 months of a clinical relapse. The number of enhancing lesions visualized was compared in patients being treated with high- or low-dose oral corticosteroids and untreated controls. High-dose oral corticosteroid treatment significantly but incompletely reduced enhancement of MS plaques. Lower doses were less effective, especially when the latter were given on alternate days.