From: Correlation between sentinel lymph node biopsy and non-sentinel lymph node metastasis in patients with cN0 breast carcinoma: comparison of invasive ductal carcinoma and invasive lobular carcinoma
Number of metastatic non-SLN
IDC
207 SLN + patients
N (%)
ILC
78 SLN + patients
0
253 (55)
26 (33.3%)
1
97 (21.1)
16 (20.5)
2
31 (6.7)
6 (7.7)
3
18 (3.9)
9 (11.5)
4 or more
61 (13.2)
21 (26.9)