Table 1.
Criteria used to derive a combined vascular injury score (0–13)8
| Histopathological feature | Score |
|---|---|
| Diffuse sinusoidal dilation | |
| None | 0 |
| <1/3 of a lobule | 1 |
| 1/3–2/3 of a lobule | 2 |
| Entire lobule | 3 |
| Small vessel loss/obliteration | |
| None | 0 |
| <1/3 of vessels | 1 |
| 1/3–2/3 of vessels | 2 |
| >2/3 of vessels | 3 |
| Focal hepatocyte plate disruption | |
| None | 0 |
| Present | 1 |
| Parenchymal extinction lesion | |
| None | 0 |
| Rare | 1 |
| Frequent | 2 |
| Nodular regenerative hyperplasia | |
| None | 0 |
| Subtle | 1 |
| Obvious | 2 |
| Peliosis | |
| None | 0 |
| Present | 1 |
| Veno-occlusive disease-like change | |
| None | 0 |
| Present | 1 |