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| Characteristics | n |
| *, 10 cases presented with mass with calcification. | |
| Histological type | |
| Invasive ductal carcinoma | 53 |
| Ductal carcinomain situ | 10 |
| Invasive papillary carcinoma | 6 |
| Others | 1 |
| Lesion type* | |
| Mass | 49 |
| Calcification | 20 |
| Asymmetry | 6 |
| Structural distortion | 5 |
