Results In the 12 cases of secondary hemophagocytic syndrome, there was apparent peripheral blood cytopenia, liver dysfunction, height increase of reticulum cell of bone marrow smear, hemophagocytosis, a drop of neutrophilic alkaline phosphatase of bone marrow. 结果12例继发性噬血细胞综合征外周血全血细胞明显减少,肝功能损伤,骨髓象网状细胞增高,噬血现象明显,骨髓NAP积分明显降低。