Felty’s syndrome is a rare complication of rheumatoid arthritis. It is characterized by splenomegaly and leucopenia.
It affects <1% of patients with RA.
Treatment is usually with systemic immunosuppression, e.g. methotrexate.
Ghavami, A. et al. Etanercept in treatment of Felty's syndrome. Ann Rheum Dis. 2005; 64(7):1090-1091.