Table 7.
Summary of the total number of individual instances in which any one of the designated BCS specimen margin sites was positive or was positive/close from the pathology report of the 204 BCS cases
| BCS specimen margin | Number of instances in which there was a positive BCS specimen margin | Histopathology of each positive BCS specimen margin |
|---|---|---|
| Superior (S) margin | 3 | 2 IDC, 1 ACC |
| Medial (M) margin | 5 | 2 IDC, 2 ILC, 1 DCIS |
| Lateral (L) margin | 3 | 1 IDC, 1 ILC, 1 DCIS |
| Inferior (I) margin | 5 | 2 IDC, 2 ILC, 1 DCIS |
| Deep-Posterior (DP) margin | 4 | 2 IDC, 1 ILC, 1 ACC |
| Anterior-Skin (AS) margin | 0 | not applicable |
| BCS specimen margin | Number of instances in which there was a positive/close BCS specimen margin | Histopathology of each positive/close BCS specimen margin |
| Superior (S) margin | 3 | 2 IDC, 1 ACC |
| Medial (M) margin | 8 | 5 IDC, 2 ILC, 1 DCIS |
| Lateral (L) margin | 4 | 2 IDC, 1 ILC, 1 DCIS |
| Inferior (I) margin | 6 | 2 IDC, 2 ILC, 2 DCIS |
| Deep-Posterior (DP) margin | 8 | 4 IDC, 1 ILC, 2 DCIS, 1 ACC |
| Anterior-Skin (AS) margin | 0 | not applicable |
BCS, breast-conserving surgery; IDC, invasive ductal carcinoma; ILC, invasive lobular carcinoma; DCIS ductal carcinoma in situ; ACC, adenoid cystic carcinoma