Dr Iain Duncan
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