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Number of breast mastectomy samples per lesion type.
| Lesion type | No. of samples per lesion type |
|---|---|
| No invasive carcinoma | 22 |
| No invasive tumor | 4 |
| Invasive carcinoma | 13 |
| No DCIS | 22 |
| Low grade DCIS | 1 |
| Intermediate grade DCIS | 8 |
| High grade DCIS | 5 |
| BRE grade 1 | 2 |
| BRE grade 2 | 10 |
| BRE grade 3 | 1 |
| No special type | 7 |
| Mixed ductal and lobular features | 1 |
| LCIS | 3 |
Note: BRE, Bloom–Richardson–Elston system; DCIS, ductal carcinoma in situ; LCIS, lobular carcinoma in situ.
