Indeterminate (B3) Breast Lesions and the Ongoing Role of Diagnostic Open Biopsy

Table 2

Patient characteristics/factors predictive of malignancy.

Factors		Benign	Malignant
Age
≤50	21	21	0
≥51	131	130	1
Symptomatic
Positive	16	16	0
Negative	136	135	1
Family history
Positive	42	42	0
Negative	110	109	1
Imaging size
≤5 mm	88	87	1
5-10 mm	30	30	0
≥11	34	34	0
CNB modality
Ultrasound 14 G	60	60	0
Stereotactic 9 G	92	91	1
Mammogram characteristics
Mass	71	71	0
Distortion	14	14	0
Microcalcification	67	66	1
Past history of breast cancer
Positive	2	2	0
Negative	150	149	1