| Variables | Numbers (N = 234) | Frequency (%) |
| Type of tumour |
|
|
| Adenofibroma | 05 | 2.1 |
| Cyst | 09 | 3.8 |
| Papilloma | 01 | 0.4 |
| Ductal carcinoma | 191 | 81.6 |
| Glandular carcinoma | 13 | 5.6 |
| Carcinomatous mastitis | 06 | 2.6 |
| Mucinous carcinoma | 05 | 2.1 |
| Ductal adenocarcinoma | 02 | 0.9 |
| Tubulous carcinoma | 01 | 0.4 |
| Lobular adenocarcinoma | 01 | 0.4 |
| Laterality |
|
|
| Unilateral | 229 | 97.9 |
| Bilateral | 05 | 2.1 |
| Number of lesions |
|
|
| Unique | 217 | 92.7 |
| Multiple | 17 | 7.3 |
| Shape |
|
|
| Oval | 208 | 88.9 |
| Round | 16 | 6.8 |
| Dysmorphic | 10 | 4.3 |
| Outlines |
|
|
| Regular | 38 | 16.2 |
| Irregular | 196 | 83.8 |
| BI-RADS classification |
|
|
| BI-RADS 1 | 01 | 0.4 |
| BI-RADS 2 | 19 | 8.1 |
| BI-RADS 3 | 22 | 9.4 |
| BI-RADS 4 | 122 | 52.1 |
| BI-RADS 5 | 61 | 26.1 |
| BI-RADS 6 | 09 | 3.8 |
| Type of lesion on ultrasound |
|
|
| Suspected benign lesion | 42 | 17.9 |
| Suspected malignant lesion | 192 | 82.1 |
| Sampling method |
|
|
| Needle biopsy | 223 | 95.3 |
| Surgical excision | 11 | 4.7 |
| Type of lesion on histopathology |
|
|
| Benign | 15 | 6.4 |
| Malignant | 219 | 93.6 |