Table 2.
Histopathological findings of the lesions (n = 423).
| Benign | n (%) 227/423 (53.7) | Malignant | n (%) 196/423 (46.3) |
|---|---|---|---|
| Fibrocystic disease | 77/227 (34) | Invasive ductal carcinoma | 157/196 (80.1) |
| Fibroadenoma/adenosis | 56/227 (25) | Invasive lobular carcinoma | 3/196 (1.5) |
| Usual ductal hyperplasia | 15/227 (6) | Ductal carcinoma in situ | 27/196 (13.8) |
| Benign Papilloma* | 13/227 (6) | Others*** | 9/196 (4.6) |
| Others** | 66/227(29) |
*Included in benign category all were confirmed benign papilloma in final surgical HPE.
**Other benign lesions include adipose tissue, fibroglandular tissue, mammary duct and acini and no malignancy.
***Other malignant lesions include neuroendocrine carcinoma, spindle cell carcinoma, solid papillary carcinoma with endocrine differentiation and diffuse large B-cell lymphoma.