The typical findings in HLH included fever, cytopenia, splenomegaly, hypertriglyceridemia, hemophagocytosis, low or absent NK cells, and increased inflammatory markers, including ferritin, soluble CD25, and CXCL9.[1] There were many cases of tuberculosis-associated HLH reported previously. The gene discussed is CXCL9; the disease is hemophagocytic syndrome.