The coexistence of multiple autoimmune diseases in the same individual is unusual and has received little attention in the literature. We present a young female patient with multiple sclerosis, systemic lupus erythematosus, and biopsy-proven renal proteinase 3 antineutrophil cytoplasmic antibodyassociated vasculitis who responded well to intravenous rituximab clinically and serologically.
Cite this article as: Namas R, Al Qassimi S, Ghosn M, et al. A tangled autoimmune trio: multiple sclerosis, systemic lupus erythematosus and ANCA vasculitis. Eur J Rheumatol. 2023;10(4):176-178.