Study Participant and Tumor Characteristics
| Characteristic | Data |
|---|---|
| Age (y) | 26–74 (57) |
| Female sex | 30 |
| Histology | |
| Invasive ductal carcinoma | 26 (87) |
| Invasive lobular carcinoma | 2 (7) |
| Mixed | 2 (7) |
| AJCC tumor stage group* | |
| I | 4 (13) |
| II | 16 (53) |
| III | 6 (20) |
| IV | 4 (13) |
| Receptor status | |
| ER or PR+/HER2− | 12 (40) |
| HER2+ | 6 (20) |
| ER−/PR−/HER2− | 12 (40) |
↵* Anatomic stage group according to AJCC Cancer Staging Manual, eighth edition (31).
AJCC = American Joint Committee on Cancer; ER = estrogen receptor; PR = progesterone receptor; HER2 = human epidermal growth factor receptor 2 amplified.
Data are number followed by percentage in parentheses, except for age, which is years (range and median).