Table 2.
Characteristics of tumours and results in 11 patients with n-SLN involvement
| Patient | No. of SLNs (pattern of involvement) | No. of n-SLNs | Pattern of n-SLN involvement (n) | Tumour type | Size (mm) | Grade (B&R) |
| 1 | 2 (SLN1 and SLN2 ITC) | 19 | ITC+ cluster (4)‡ | Ductal | 25 | 3 |
| 2 | 2 (SLN1 ITC+ cluster, SLN2−) | 13 | ITC (1) | Lobular | 50 | 1 |
| 3 | 1 (cluster) | 8 | Cluster* (3)‡ | Ductal | 12 | 1 |
| 4 | 1 (cluster) | 22 | Cluster (1) | Ductal | 21 | 3 |
| 5 | 1 (cluster) | 10 | ITC (1)‡ | Ductal | 17 | 2 |
| 6 | 1 (cluster) | 11 | Cluster* (2) | Ductal | 26 | 2 |
| 7 | 1 (cluster) | 15 | Cluster† + ITC (4) | Ductal | 30 | 3 |
| 8 | 3 (SLN1 cluster, SLN2 and SLN3−) | 4 | Cluster (2) | Ductal | 20 | 3 |
| 9 | 1 (cluster) | 22 | Cluster† (3) | Ductal | 21 | 2 |
| 10 | 1 (cluster) | 10 | ITC (1)‡ | Ductal | 55 | 2 |
| 11 | 1 (ITC+ cluster) | 28 | Cluster (2)‡ | Ductal | 10 | 3 |
*n-SLN micrometastasis larger than SLN metastasis; †n-SLN macrometastasis; ‡negative n-SLN status in original report.
B&R, Bloom and Richardson; ITC, isolated tumour cell; nSLN, non-sentinel lymph node; SLN, sentinel lymph node.