Evaluation score used for immunohistochemistry
| Result of staining | ||
|---|---|---|
| Score | Mononuclear cells | Endothelia |
| 0 | No positive cells | Negative |
| 1 | 1–10% positive cells, weak staining | Weak staining, up to 10% of vessel circumference positive |
| 2 | 1–10% positive cells, strong staining | Strong staining, up to 10% of vessel circumference positive |
| 3 | 11–50% positive cells, weak staining | Weak staining, up to 11–50% of vessel circumference positive |
| 4 | 11–50% positive cells, strong staining | Strong staining, up to 11–50% of vessel circumference positive |
| 5 | 51–80% positive cells, weak staining | Weak staining, up to 51–80% of vessel circumference positive |
| 6 | 51–80% positive cells, strong staining | Strong staining, up to 51–80% of vessel circumference positive |
| 7 | 81–100% positive cells, weak staining | Weak staining, up to 81–100% of vessel circumference positive |
| 8 | 81–100% positive cells, strong staining | Strong staining, up to 81–100% of vessel circumference positive |