Table 2.
HPE findings in 170 VABB lesions.
| Benign |
n = 149 % (87.6) |
Malignant |
n = 21 % (12.4) |
|---|---|---|---|
| Benign | 140 (82.4) | Invasive carcinoma | 4 (2.4) |
| Fibrocystic disease | 59 | Infiltrating ductal | 3 |
| Fibroadenoma | 11 | Invasive papillary | 1 |
| Usual ductal hyperplasia (UDH) | 12 | DCIS | 17 (10.0) |
| Sclerosing adenosis | 10 | Low grade | 5 |
| Other benign lesions* | 48 | Intermediate grade | 5 |
| Borderline | 9 (5.3) | High grade | 7 |
| Atypical ductal hyperplasia** | 7 | ||
| Flat epithelial atypia** | 1 | ||
| LCIS** | 1 |
*Other benign lesions include; benign breast tissue, mammary duct ectasia and no malignancy.
**Borderline lesions.