Figure 5

Neutropenia and high ACPA in Felty’s syndrome. (a) Absolute neutrophil counts (ANC) in patients with FS or T-LGL, compared to the normal range of ANC (HC, blue). (b) ACPA titers in patients with RA (n = 203), FS (n = 19), or T-LGL (n = 15). (c) ACPA titers in FS patients with severe or mild neutropenia or ANC within the normal range. (d) Anti-PAD4 autoantibody titers in patients with FS and T-LGL.