Categories of BI-RADS scales and management recommendations
| Assessment | Management | Probability of malignancy |
|---|---|---|
| BI-RADS 0: not conclusive | Additional tests are requiring | N/A |
| BI-RADS 1: normal breast | Routine mammography screening | Essentially 0% |
| BI-RADS 2: benign | Routine mammography screening | Essentially 0% |
| BI-RADS 3: probably benign | Requires semestral follow-up by two years | ≤ 2% |
| BI-RADS 4: probably malignant | Biopsy required | > 2% and < 95% |
| BI-RADS 4A: low suspicion | Biopsy required | > 2% and ≤ 10% |
| BI-RADS 4B: moderate suspicion | Biopsy required | > 10% and ≤ 50% |
| BI-RADS 4C: high suspicion | Biopsy required | > 50% and ≤ 95% |
| BI-RADS 5: highly suggestive of malignancy | Biopsy required | ≥ 95% |
| BI-RADS 6: histologically confirmed malignancy | Surgical excision when clinically appropriate | N/A |
N/A: not applicable