Figure 8: (a) Masson’s trichrome staining showed minor fibrotic tissue in the boundary between thermal injury area and normal liver in the SS electrode group. No fibrotic tissue was evident for the DLC-Cu-SS blade group at day 3. At day 7, the fibrotic tissues were clearly found in the SS electrode group, and the fibrotic area was larger than that of the DLC-Cu-SS electrode group. Liver neogenesis was minor with large area of apoptosis in the SS electrode group at day 14. DLC-Cu-SS electrode group had large area of neogenesis. Nodular foci of hepatocytes were formed in the apoptotic area for both groups at day 28, and the SS electrode group still had a larger fibrotic area relative to the DLC-Cu-SS electrode group. Classification of the injury site by type at (b) day 3, (b) day 7, (d) day 14, and (e) day 28.