Silver-absorptive cells in liver parenchyma. I. Histological and ultrastructural studies.
AgNO3 staining by generally accepted methods revealed the presence of silver-absorptive cells in the liver, particularly in perivascular areas. These cells exhibited positive argyrophilia and argentophilia. Lead haematoxylin staining and Solcia's azo-coupling methods allowed identification of the cells, which can be included among the cells of the APUD system.