Table 3.
Results of immunohistochemical and in-situ hybridization markers
| Ductal (n = 611) | Lobular (n = 116) | Total (n = 727) | |
|---|---|---|---|
| ER+ | 511 (83.6) | 102 (87.9) | 613 (84.3) |
| ER− | 98 (16.0) | 14 (12.1) | 112 (15.4) |
| Not possible to interpret | 2 (0.3) | 0 | 2 (0.3) |
| PR+ | 364 (59.6) | 58 (50.0) | 422 (58.1) |
| PR− | 246 (40.3) | 58 (50.0) | 304 (41.8) |
| Not possible to interpret | 1 (0.2) | 0 | 1 (0.1) |
| HER2+ | 103 (16.9) | 7 (6.0) | 110 (15.1) |
| HER2− | 508 (83.1) | 109 (94.0) | 617 (84.9) |
| Ki67high | 280 (45.8) | 39 (33.6) | 319 (43.9) |
| Ki67low | 330 (54.0) | 77 (66.4) | 407 (56.0) |
| Not possible to interpret | 1 (0.2) | 0 | 1 (0.1) |
| CK5+ | 120 (19.6) | 4 (3.5) | 124 (17.1) |
| CK5− | 491 (80.4) | 112 (96.6) | 603 (82.9) |
| EGFR+ | 41 (6.7) | 3 (2.6) | 44 (6.1) |
| EGFR− | 570 (93.3) | 113 (97.4) | 683 (93.9) |
| E-cad+ | 523 (85.6) | 27 (23.3) | 550 (75.7) |
| E-cad− | 69 (11.3) | 86 (74.1) | 155 (21.3) |
| Not possible to interpret | 19 (3.1) | 3 (2.6) | 22 (3.0) |
EGFR, epithelial growth factor receptor; ER, oestrogen receptor; PR, progesterone receptor.