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| Lymph nodes types | N | Detection rate (%) | Mean number of SLN |
|---|---|---|---|
| Principal sentinel lymph nodes (PSN) | 444/456 | 97.4 | 1.8±1.1 |
| Accessory sentinel lymph nodes (ASN) | 351/456 | 77 | 1.5±1.3 |
| Total (PSN + ASN) | 444/456 | 97.4 | 3.3±1.7 |
| NSABP B-32 (7) | 5,379/5,536 | 97.2 | 2.8±2.1 |
SLN, sentinel lymph node.
