Table 1.
Pathological types of breast cancer patients in the primary cohort.
| Pathology | No. (%) of patients | ||
|---|---|---|---|
| SLN non-metastasis | SLN metastasis | Total | |
| invasive ductal carcinoma | 403(76.0%) | 356(95.7%) | 759(84.2%) |
| ductal carcinoma in situ | 106(20.0%) | 14(3.8%) | 120(13.3%) |
| mucinous carcinoma | 7(1.3%) | 0 | 7(0.8%) |
| mixed breast carcinoma | 6(1.1%) | 1(0.3%) | 7(0.8%) |
| intraductal papillary carcinoma | 4(0.8%) | 0 | 4(0.4%) |
| invasive micropapillary carcinoma | 2(0.4%) | 1(0.3%) | 3(0.3%) |
| invasive lobular carcinoma | 1(0.2%) | 0 | 1(0.1%) |
| malignant phyllodes tumor | 1(0.2%) | 0 | 1(0.1%) |
| Total | 530 | 372 | 902 |
SLN, sentinel lymph node.