Lymphoproliferative disorders (LPDs) are serious complications associated with rheumatoid arthritis (RA) treatment that mostly occur during methotrexate (MTX) treatment. Cessation of MTX may induce regression of LPDs but is often followed by a flare of RA. Here. we describe two patients with RA flares after the discontinuation of MTX due to LPDs and sarilumab was useful for the treatm... https://halohealthcarers.shop/product-category/pet-supplies/