Immune ‐mediated necrotizing myopathy with concomitant development of Kikuchi–Fujimoto disease

AbstractImmune-mediated necrotizing myopathy (IMNM) is a distinct type of idiopathic inflammatory myositis, pathologically characterized by myofiber necrosis and degeneration in the absence of lymphocyte infiltration. Herein, we present a case of IMNM with concomitant development of Kikuchi –Fujimoto disease (KFD), characterized by histiocytic necrotizing lymphadenitis, in a 36-year-old woman who had a treatment history for rheumatoid arthritis (RA). Treatment with oral prednisolone and tacrolimus as immunosuppressants resulted in the remission of the skeletomuscular involvement and lymphadenopathy. To the best of our knowledge, this is the first report of IMNM and KFD developing concomitantly during the clinical course of RA.

https://onlinelibrary.wiley.com/doi/10.1111/1756-185X.14894?af=R

Source: International Journal of Rheumatic Diseases - September 1, 2023 Category: Rheumatology Authors: Takanori Ichikawa, Ryo Furukawa, Yasuhiro Shimojima, Yumi Hoshino, Dai Kishida, Yoshiki Sekijima Tags: CASE REPORT Source Type: research