Table 1 Patient (N = 35) and lesion (N = 36) characteristics
From: Progesterone Receptor Gene Variants in Metastatic Estrogen Receptor Positive Breast Cancer
| Characteristics | Number (N) | % |
|---|---|---|
| Metastatic site | ||
| Bone | 13 | 36 |
| Brain | 6 | 17 |
| Chest wall | 3 | 8 |
| Liver | 4 | 11 |
| Lung or pleura | 4 | 11 |
| Lymph node | 6 | 17 |
| Primary tumor histology | ||
| Invasive ductal carcinoma | 26 | 74 |
| Invasive lobular carcinoma | 2 | 6 |
| Other/unknown | 7 | 20 |
| Primary tumor grade | ||
| 1 | 3 | 9 |
| 2 | 15 | 43 |
| 3 | 8 | 23 |
| Adjuvant endocrine therapy | ||
| Aromatase inhibitor | 9 | 26 |
| Tamoxifen | 14 | 40 |
| Both | 12 | 34 |
| Alive at last follow-up | 17 | 49 |
| PGR variant | 24 | 67 |