[Generalized ceroid histiocytosis in type 5 hyperlipoproteinaemia (author's transl)]

Histochemical, fluorescence and electron microscopic features of histiocytes from the spleen, lymph nodes and liver were investigated in a patient with type 5 hyperlipoproteinaemia with splenomegaly (Fredrickson and Lees, 1965). The pigment stored in histocytes represented ceroid, a product of oxidation and polymerization of unsaturated lipids. The morphological features of ceroid and histogenesis of ceroid histiocytosis are discussed.