Table 1B. Tumour characteristics (n = 194).
| Characteristics | n | % |
|---|---|---|
| Quadrant | ||
| External | 83 | 43 |
| Internal | 77 | 40 |
| Central | 29 | 15 |
| Unknown | 5 | 2 |
| Histology | ||
| Invasive ductal carcinoma | 162 | 85 |
| Invasive lobular carcinoma | 15 | 8 |
| Carcinoma In situ | 6 | 5 |
| Mixed (Ductal and lobular) | 5 | 3 |
| Other | 3 | 2 |
| Clinical tumour stage | ||
| cT1 | 102 | 53 |
| cT2 | 59 | 30 |
| cT3 | 24 | 12 |
| cT4 | 6 | 3 |
| Unknown | 3 | 2 |
| Clinical nodal stage | ||
| cN0 | 93 | 48 |
| cN1 | 80 | 41 |
| cN2 | 1 | 1 |
| cN3 | 4 | 2 |
| Unknown | 16 | 8 |
| HER 2 | ||
| Yes | 25 | 13 |
| No | 163 | 84 |
| Unknown | 6 | 3 |
| Triple negative | ||
| Yes | 33 | 17 |
| No | 155 | 80 |
| Unknown | 6 | 3 |
| HR+ | ||
| Yes | 147 | 76 |
| No | 41 | 21 |
| Unknown | 6 | 3 |
| SBR grade | ||
| Low (I) | 17 | 9 |
| Intermediate (II) | 78 | 40 |
| High (III) | 92 | 47 |
| Unknown | 7 | 4 |
Abbreviations: HER 2 = human epidermal growth factor receptor 2; HR+ = Hormone receptor positive; SBR = Scarff-Bloom-Richardson.