Table 1.
Patient characteristics.
| Patients who did not require re-excision N = 67 (61%) | Patients who underwent re-excision N = 42 (39%) | p-value | |
|---|---|---|---|
| Age range (years) | 48 (30–79) | 49 (27–74) | 0.22 |
| Breast Density | 0.26 | ||
| 1 | 0 (0%) | 1 (2%) | |
| 2 | 5 (7%) | 6 (14%) | |
| 3 | 40 (60%) | 28 (67%) | |
| 4 | 18 (27%) | 7 (17%) | |
| NA | 4 (6%) | 0 (0%) | |
| Localization | <0.01 | ||
| No | 26 (39%) | 5 (12%) | |
| Yes | 41 (61%) | 37 (88%) | |
| Localization method | 0.92 | ||
| Wire | 39 (58%) | 35 (83%) | |
| Seed | 2 (3%) | 2 (5%) | |
| NA | 26 (39%) | 5 (12%) | |
| Bracket | 0.56 | ||
| No | 39 (58%) | 34 (81%) | |
| Yes | 2 (3%) | 3 (7%) | |
| NA | 26 (39%) | 5 (12%) | |
| Type of invasive cancer | 0.07 | ||
| IMC | 3 (4%) | 6 (14%) | |
| IC | 64 (96%) | 36 (86%) | |
| ER | 0.01 | ||
| Negative | 17 (25%) | 21 (50%) | |
| Positive | 49 (73%) | 21 (50%) | |
| Borderline | 1 (1%) | 0 (0%) | |
| PR | 0.01 | ||
| Negative | 26 (39%) | 27 (64%) | |
| Positive | 40 (60%) | 15 (36%) | |
| Borderline | 1 (1%) | 0 (0%) | |
| DCIS | 0.01 | ||
| No | 59 (88%) | 29 (69%) | |
| Yes | 8 (12%) | 13 (31%) | |
| Poorly differentiated tumors | 60 (90%) | 38 (90%) | 0.26 |
| Positive lymph nodes | 26 (39%) | 12 (29%) | <0.01 |
| Size on MRI (cm) | 2.0 ± 0.8 | 2.6 ± 1.7 | 0.02 |
| Largest dimension of excised tissue (cm) | 5.8 ± 3.0 | 5.6 ± 2.8 | 0.98 |
| Size of tumor on pathology | 1.7 ± 0.8 | 1.3 ± 0.9 | 0.11 |
| Multifocal/Multicentric on MRI | 16 (24%) | 17 (40%) | <0.01 |
M: Mixed invasive lobular and invasive ductal carcinoma.
D: Invasive ductal carcinoma.
DCIS: Ductal carcinoma in situ.
Bracket: Indicates 2 wires or 2 seeds were utilized to delineate extent of disease prior to surgery.