| 0 | incomplete | additional imaging evaluation needed |
| 1 | negative | |
| 2 | benign | likelihood of malignancy ~0%. Routine screening recommended |
| 3 | probably benign | 0-2% likelihood of malignancy. Follow-up in ~6 months |
| 4 | suspicious | likelihood of malignancy 2-95% |
| 5 | highly suspicious | >95% risk of malignancy. Requires tissue diagnosis |
| 6 | proven malignancy | biopsy positive. Surgical excision recommended |
