Fig. 5. Fibrotic changes of liver following formaldehyde (FA) administration in comparison with control in Masson's trichrome stained sections (×200). Samples from FA group (B, D) showed an increase in fibrous tissue around portal area and central vein (arrowheads) when compared with control group (A, C). This figure shows that FA prominently disrupts portal area network by causing fibrotic tissue. PV, portal vein; HA, hepatic artery; BD, bile duct; CV, central vein.
