Effect of Hg on liver histology x400. A, Liver plate (control) showed: normal tissue. B, liver (5 ppm) showed: drug induced mild mixed mononuclear inflammatory cells with little esinophiles, congested capillaries and hydropic degenerations.C,liver (10 ppm) showed: drug induced mixed mononuclear inflammatory cells with esinophiles and dilated capillaries and hydropic degenerations.