Table 2 Semi-quantitative evaluation of structural changes in IFP: Fibrosis
Score | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
Perivascular | Normal, 0–20% of total area | Low, 20–40% of total area | High, 40–60% of total area | Extensive, > 60% of total area |
IFP body | Normal, 0–20% of total area | Low, 20–40% of total area | High, 40–60% of total area | Extensive, > 60% of total area |
IFP surface | Normal, 0–20% of total area | Low, 20–40% of total area | High, 40–60% of total area | Extensive, > 60% of total area |