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Patient and Tumor Characteristics in Corresponding Primary Breast Cancer Cases
| Characteristic | N = 59 |
|---|---|
| Primary breast cancer subtype | |
| Triple negative | 6 (10.2%) |
| HER2+/HR− | 11(18.6%) |
| HER2+/HR+ | 4 (6.8%) |
| HR+/HER2− | 12 (20.3%) |
| Unknown | 26 (44.1%) |
| Primary breast cancer stage | |
| 1 | 12 (20.3%) |
| 2 | 14 (23.7%) |
| 3 | 8 (13.6%) |
| 4 | 1 (1.7%) |
| Unknown | 24 (40.7%) |
