“…NK cell and cytotoxic lymphocyte (CTL) activities are decreased (Al‐Herz et al , ). Disease characteristics of CHS include partial albinism, hepatosplenomegaly, neutropenia, severe recurrent bacterial infections, platelet abnormalities, lymphoma‐like disease, and neurologic problems (Introne et al , ; Ward et al , ; Wolf et al , ; Rezaei et al , ). A majority of patients are likely to experience an ‘accelerated phase’ (hemophagocytic syndrome) of the disease, in which there is a lymphoproliferative surge (uncontrolled proliferation of T cells) into major organ systems that resemble lymphoma.…”