Coexistence of SAPHO syndrome and IgG4-related disease with Upadacitinib
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Objectives: To describe the first reported case of coexisting Synovitis, Acne, Pustulosis, Hyperostosis, and Osteitis (SAPHO) syndrome and IgG4-related disease (IgG4-RD) and to evaluate the therapeutic response to Upadacitinib. ... ...
