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Table 1 Grouping based on the number of SLNs

From: Prospective study found that peripheral lymph node sampling reduced the false-negative rate of sentinel lymph node biopsy for breast cancer

ALN status No. of patients No. of SLNs
1 2 3 ≥4
Negative ALNs 376 112 111 89 64
Positive ALNs
 SLN(+) and nSLN(+) 72 19 22 14 17
 SLN(+) and nSLN(–) 100 18 33 24 25
 SLN(–) and PLN(+) 11 7 3 1 0
 SLN(–) and PLN(–) 8 2 3 2 1
 Total 567 158 172 130 107
  1. Abbreviations: SLN sentinel lymph node, ALN axillary lymph node, nSLN non-sentinel lymph node, PLN peripheral lymph node