Case Report: Immune checkpoint inhibitor-induced IgG4-related disease mimicking renal metastatic progression: successful steroid-sparing management with rituximab
BackgroundImmune checkpoint inhibitors (ICIs) can induce a broad spectrum of immune-related adverse events (irAEs), including rare fibroinflammatory autoimmune manifestations. IgG4-related disease (IgG4-RD) has only exceptionally been described followi…