From: The predictive value of methylene blue dye as a single technique in breast cancer sentinel node biopsy: a study from Dharmais Cancer Hospital
SN characteristic
Number
Percentage
Positive SN count
1–2
43
91.5
>2
4
8.5
Metastasis type
Macrometastases
42
89.4
Micrometastases
5
10.6
Patients with SNs only metastasis count
22
46.8
Patients with SN and NSN metastasis count
25
53.2