Multiple Sclerosis in rheumatic patients treated with tumor necrosis factor alpha inhibitors: a single-center retrospective case series and literature review.

Tumor necrosis factor alpha inhibitors (TNFi) are basilar treatments in a number of inflammatory rheumatic conditions and autoimmune phenomena such as de novo neuroinflammatory events were already described in these populations under TNFi. We conducted a single-center retrospective study in a cohort of rheumatic patients treated with TNFi to characterize neurological demyelinating/inflammatory disease in these patients. We report 3 cases (n= 744): all of them had spondyloarthritis, the onset of neurological manifestations occurred between 37 and 58 years old and all of them initially presented with an optic neuritis.