Table 1.
Characteristics of study lesions
| Benign (n = 64) | Malignant (n = 84) | Total (n = 148) | |
|---|---|---|---|
| Palpable | |||
| Yes | 14 (23) | 28 (34) | 42 (29) |
| No | 48 (77) | 55 (66) | 103 (71) |
| Laterality | |||
| Right | 41 (64) | 48 (57) | 89 (60) |
| Left | 23 (36) | 36 (43) | 59 (40) |
| Type of findings on MX | |||
| Mass | 27 (42) | 46 (55) | 73 (49) |
| Asymmetry | 9 (14) | 4 (5) | 13 (9) |
| Distortion | 3 (5) | 3 (4) | 6 (4) |
| Intramammary node | 1 (2) | 0 (0) | 1 (1) |
| Mass ± calcs | 6 (9) | 20 (24) | 26 (18) |
| Asymmetry ± calcs | 1 (2) | 0 (0) | 1 (1) |
| Calcs | 3 (5) | 8 (10) | 11 (7) |
| Unknown | 14 (22) | 3 (4) | 17 (11) |
| Procedure | |||
| Surgery | 24 (38) | 58 (69) | 82 (55) |
| Core biopsy | 19 (30) | 23 (27) | 42 (28) |
| FNAB | 8 (12) | 3 (4) | 11 (7) |
| Follow-up | 13 (20) | 0 (0) | 13 (9) |
| Histological grade | |||
| G1 | 26 (31) | ||
| G2 | 33 (39) | ||
| G3 | 12 (14) | ||
| Unknown | 13 (15) | ||
| US images available | |||
| Yes | 51 (80) | 73 (87) | 124 (84) |
| No | 13 (20) | 11 (13) | 24 (16) |
Values are presented as number and percentage unless otherwise noted. calcs, calcifications; FNAB, fine-needle aspiration biopsy; MX, mammography; US, ultrasonography.