Abstract
The histochemical property of amyloid was studied in 2 cases of lichen amyloidosus in fresh unfixed skin sections. Two-step periodic acid Schiff method was used for staining acid mucopolysaccharides containing 1:4 linked uronic acid. To identify various polyanions histochemically, staining was carried out with alcian blue containing different concentrations of electrolytes. The results observed suggest that amyloid in lichen amyloidosus contains heparitin sulfate. However, the possibility of the presence of polycarboxylates was not denied.
