Neutropenia in Felty’s syndrome successfully treated with hydroxychloroquine

Felty’s syndrome (FS) is a rare disease defined by the presence of 3 conditions: rheumatoid arthritis (RA), neutropenia, and splenomegaly 1. It has been subdivided into two entities, depending on the presence or absence of large granular lymphocyte (LGL) leukaemia. LGL leukaemia is diagnosed by