Figure 1 Micrographs of liver section from A): G (I) shows the normal architecture of the portal tract (arrow). At the wall of sinusoids, phagocytic irregular cells known as Von Kupffer cells are shown (arrowhead), B): G (II) shows nodular appearance of the liver lobule and bridging necrosis with accompanied mononuclear inflammatory cells (arrows). Also signs of vacuolar degeneration of hepatocytes with balloon cells (arrowhead) and focal proliferation of biliary ductules within the periportal tracts(green arrow) are visible, C): G (III) shows acute inflammatory infiltrate (arrow) within the periportal tract entering focally the liver lobule and vacuolar degeneration of single hepatocytes. Fibrotic septa are not seen, D): G (III) shows mild inflammation (arrow) but no fibrotic septa. Hepatocytes appear more or less like normal ones with small areas of hydropic degeneration, E): G (IV) shows mild inflammation (arrow) in portal and periportal tract without fibrotic septa. Hepatocytes appear more or less like normal ones, F): G (IV) shows hepatocytes appear more or less like normal ones (H&E, Scale bar: 20 μm).