Myelokathexis is a rare congenital disorder characterized by the abnormal retention of mature neutrophils in the bone marrow. This condition is part of a larger spectrum of disorders known as WHIM syndrome (Warts, Hypogammaglobulinemia, Infections, and Myelokathexis). The term "myelokathexis" is derived from Greek, where "myelo" refers to the bone marrow and "kathexis" means retention.
