Onset of multiple sclerosis associated with anti-TNF therapy

Therapies aimed at inhibiting tumor necrosis factor (TNF) a proinflammatory cytokine implicated in autoimmune disease are effective, especially for rheumatoid arthritis. We report a patient with new onset MS closely associated with the initiation of anti-TNF therapy for juvenile rheumatoid arthritis. It is possible that the inhibition of TNF triggered MS in this individual.