Table 1.
Patient pathological characteristics
| Malignant (n = 108) | Benign (n = 44) | ||
| Ductal carcinoma in situ | 24 | Flat epithelial atypia | 22 |
| Invasive ductal carcinoma | 74 | Proliferative breast diseasea | 7 |
| Invasive lobular carcinoma | 3 | Intraductal papilloma | 2 |
| Squamous cell carcinoma | 2 | Fibroadenoma | 5 |
| Metastatic serous adenoma | 1 | Adenosis | 5 |
| Mucinous carcinoma | 1 | Fibrosis | 1 |
| Angiosarcoma | 1 | Non-proliferative breast diseaseb | 2 |
| Adenoid cystic carcinoma | 1 | ||
| Liposarcoma | 1 | ||
a
Proliferative breast disease other than FEA.
b
Non-proliferative breast disease other than fibroadenoma, adenosis, fibrosis