since several conditions such as mycosis fungoides , sezary syndrome and various reticuloses of the traditional european literature were proved to be lymphomas ( b- or t-cell type ) , only the following skin tumors were classified as being at least of partly histiocytic origin : histiocytoma ( better dermatofibroma ) , reticulohistiocytoma ( juvenile xanthogranuloma ) , systemic reticulohistiocytosis , malignant histiocytoma and histiocytosis , histiocytic or mixed lymphoma and histiocytosis x .
C0019618
histiocytosis
C0019621
histiocytosis x