TABLE 1.

The categories of BI-RADS assessments.

Category	Assessment	Likelihood of Malignancy	Management
0	Incomplete	NA	Additional imaging required
1	Negative	No cancer detected	Annual screening
2	Benign	0%	Annual screening
3	Probably benign	0-2%	Follow-up in 6 months
4A	Suspicious	2-10%	Tissue diagnosis
4B	Suspicious	10-50%	Tissue diagnosis
4C	Suspicious	50-95%	Tissue diagnosis
5	Malignant	95%	Tissue diagnosis
6	Biopsy-proven malignancy	Cancer present	Surgical excision