Characteristic | |
---|---|
Age (years)a | 53 (20–85) |
Interval between initial surgery and screening MRIa (months) | 27.8 (12.1–167.3) |
Preoperative breast MRI | |
Yes | 930 (89.1%) |
No | 114 (10.9%) |
Pathology of initial breast cancer | |
Ductal carcinoma in situ | 185 (17.7%) |
Invasive ductal carcinoma | 729 (69.8%) |
Invasive lobular carcinoma | 33 (3.2%) |
Tubular carcinoma | 25 (2.4%) |
Cribiform carcinoma | 3 (0.3%) |
Mucinous carcinoma | 23 (2.2%) |
Invasive micropapillary carcinoma | 6 (0.6%) |
Metaplastic carcinoma | 6 (0.6%) |
Solid papillary carcinoma | 10 (1.0%) |
Others | 24 (2.3%) |
Type of surgery | |
Partial mastectomy | 648 (62.1%) |
Mastectomy | 396 (37.9%) |
Pathological T stage | |
TX | 15 (1.4%) |
T0 | 27 (2.6%) |
Tis | 188 (18.0%) |
T1 | 624 (59.8%) |
T2 | 176 (16.9%) |
T3 | 12 (1.1%) |
T4 | 2 (0.2%) |
Pathological N stage | |
NX | 7 (0.7%) |
N0 | 822 (78.7%) |
N1 | 182 (17.4%) |
N2 | 27 (2.6%) |
N3 | 6 (0.6%) |