Mohamed Reda Belkhribchia, Johannes Alexander Lobrinus, Lamyaa Semlil, Nicolas Chauveau, Abdelaziz Ajrinija, Kristof Egervari, Zine Elabidine Ennhaili
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Rheumatoid Arthritis Associated With Anti-Signal Recognition Particle Immune-Mediated Necrotizing Myopathy: A Case Report.
Immune-mediated necrotizing myopathy (IMNM) is a rare subtype of idiopathic inflammatory myopathy that is characterized by severe subacute proximal weakness, myofiber necrosis, and significantly elevated serum creatine kinase. Anti-signal recognition particle (SRP) and anti-3-hydroxy-3-methylglutaryl-coenzyme-A reductase autoantibodies have been found in about two-thirds of patients with IMNM. This myopathy is usually idiopathic and there is a scarce literature concerning its association with connective tissue diseases. Herein, we report an unusual case of a young woman who presented with both rheumatoid arthritis and severe anti-SRP IMNM. Thankfully to a therapeutic protocol combining rituximab and cyclophosphamide, an important improvement was achieved, and notably no serious side effect was observed.
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The AFMR is committed to enhancing the training and career development of our members and to furthering its mission to facilitate the conduct of research to improve medical care. Case reports represent an important avenue for trainees (interns, residents, and fellows) and early-stage faculty to demonstrate productive, scholarly activity.
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