in an attempt to define a biological marker of monocyte hyperactivation in the course of infantile histiocytosis , the spontaneous nitroblue tetrazolium ( nbt ) reduction assay was applied to monocytes from 13 children with langerhans cell histiocytosis ( lch ) , familial haemophagocytic lymphohistiocytosis ( fhl ) , juvenile xanthogranuloma or malignant histiocytosis .
C0019618
histiocytosis
C0019621
langerhans cell