Laboratory data indicated that cytopenia with thrombocytopenia, low hemoglobin, neutropenia is 85%, 75%, 80%, respectively, elevated ferritin serum > 500 ug / L (95%), hypertriglyceridemia > 3 mmol / L (65%), hypofibrinogemia (50%), hemophagocytosis in bone marrow (100%), and liver dysfunction was mainly manifested with elevated liver enzymes (60%) and LDH (85%).