METAVIR fibrosis score | METAVIR activity score | ||
No fibrosis | F0 | No activity | A0 |
Portal fibrosis without septa | F1 | Mild activity | A1 |
Portal fibrosis with few septa | F2 | Moderate activity | A2 |
Portal fibrosis with numerous septa without cirrhosis | F3 | Severe activity | A3 |
Cirrhosis | F4 |
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