Table 1 Semi-quantitative scale for the histological parameters
Score | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
Re-epithelization rate | Early signs of re-epithelization | Regenerated mono-layered epithelium | Regenerated multi-layered epithelium | Differentiated multi-layered epithelium (stratum corneum) |
Inflammatory infiltrate (white cells) | None | Few | Fair | Rich |
Collagen content in granulation tissue | None | Poor | Moderate | High |
PCNA in epidermis and dermis (positive nuclei/mm of epidermis or mm2 of dermis) | 0 | 1–9 | 10–30 | >30 |