Histopathological features of the biopsies
| Patient | GC | L&H in M | REL | IT | Other features | Artery biopsy length (mm) | Assessment of activity |
|---|---|---|---|---|---|---|---|
| GC = Giant cells, L&H in M = lymphocytes and macrophages in media, REL = replication of elastic lamina, IT = intimal thickening. | |||||||
| 1 | +++ | ++ | ++ | ++ | Adventitial chronic inflammation, side branch vasculitis | 13 | Active |
| 2 | +++ | ++ | ++ | +++ | Fibrinoid degeneration, adventitial chronic inflammation | 17 | Active |
| 3 | – | – | – | – | – | 25 | Negative |
| 4 | + | ++ | ++ | +++ | Adventitial chronic inflammation | 10 | Active |
| 5 | + | ++ | +++ | ++ | Adventitial chronic inflammation, side branch vasculitis | 15 | Active |
| 6 | 0 | + | ++ | ++ | Focal media scarring, calcification | 5 | Healed |
| 7 | + | +++ | ++ | ++ | – | 4.5 | Active |
| 8 | 0 | 0 | ++ | ++ | Media calcification | 2.5 | Healed |
| 9 | ++ | + | ++ | ++ | Adventitial chronic inflammation | 33 | Active |
| 10 | 0 | 0 | 0 | + | – | 4 | Arteriosclerosis |
| 11 | + | ++ | ++ | ++ | – | 7 | Active |









