CD40LG and hemophagocytic syndrome: Fever, cough, dyspnea, sweats, jaundiceNo pharyngitis or palpable LNCT of abdomen and pelvis with HSM; LEE; pancytopenia; increased liver enzymes; AKIEBV VCA IgG+ IgM−; EBNA+; EA−; Toxo Ab NDHLH diagnosis; death before HLH treatment