Table 5 Immunohistochemistry subtypes summary
Study Characteristics | N = number of tumors | % of total tumors |
|---|---|---|
Breast Cancer (unilateral = 248, bilateral = 25) | 298 | 100.00 |
Grade | ||
 1 | 10 | 3.36 |
 2 | 123 | 41.28 |
 3 | 139 | 48.94 |
 Unknown | 26 | 8.72 |
Histology | ||
 IDC | 257 | 86.24 |
 DCIS | 22 | 7.38 |
 ILC | 9 | 3.02 |
 Papillary | 3 | 1.01 |
 Unknown | 7 | 2.35 |
Immunohistochemistry | ||
 Triple Negative (−) | 71 | 23.83 |
 Triple Positive (+) | 35 | 11.74 |
 ER−/PR+/HER2+ | 2 | 0.67 |
 ER−/PR+/HER2- | 4 | 1.34 |
 ER−/PR- | 3 | 1.01 |
 ER−/PR−/HER2+ | 24 | 8.05 |
 ER+/PR−/HER2- | 13 | 4.36 |
 ER+/PR+/HER2- | 115 | 38.59 |
 ER+/PR−/HER2+ | 5 | 1.68 |
 ER+/PR+ | 15 | 5.03 |
 ER+/PR- | 1 | 0.34 |
 Unknown | 10 | 3.36 |