A 6-year-old boy developed hemophagocytic syndrome during the recurrent course of Kawasaki disease. Despite the appropriate treatment modalities for Kawasaki disease, he developed pancytopenia, marked hepatosplenomegaly, high-grade fever, hyperferritinemia, hypertriglyceremia, and evidence of hemophagocytosis in the liver biopsy. Although the course was stormy, he responded well to a combination therapy of corticosteroids, etoposide VP16, and granulocyte colony-stimulating factor G-CSF. The clinical course and the treatment given were compared with the previous reported cases.
Our study is the first report of the detailed radiological findings of NAO syndrome. In NAO syndrome, both the axial and appendicular skeleton are involved
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