Table 2 Histopathological score for assessing arteritis/periarteritis in well-vascularized tissues such as kidney and mesentery
Score/tissue | Description |
|---|---|
− | Absence of inflammatory infiltrates in the arterial walls or around them |
+ | Less than 10% of arteries affected |
++ | Equal or more than 10% and less than 25% of arteries affected |
+++ | Equal or more than 25% of arteries affected |