Mammographic indications for breast needle core biopsy by category
| B1 | B2r | B2 | B3a | B3b | B4 | B5 | Total | |
|---|---|---|---|---|---|---|---|---|
| Microcalcification | 49 | 34 | 89 | 3 | 10 | 7 | 42 | 234 (78.5%) |
| Asymmetrical density | 5 | 10 | 7 | 3 | 0 | 0 | 9 | 34 (11.4%) |
| Calcified opacity | 1 | 4 | 4 | 1 | 0 | 0 | 3 | 13 (4.4%) |
| Stellate lesions | 2 | 1 | 1 | 1 | 0 | 0 | 1 | 6 (2.0%) |
| Others | 4 | 3 | 2 | 1 | 0 | 0 | 1 | 11 (3.7%) |
| Total | 61 | 52 | 103 | 9 | 10 | 7 | 56 | 298 (100%) |