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
0
SLN(–) and PLN(–)
8
Total
567
158
172
130
107