Table 1: Factors influencing the sensitivity of SLN biopsy.

FactorSensitivityReference

T189.7–93.3%[4, 7, 8]
T2-T382.0–92.6%[7, 9]
Grade[10]
 195.7%
 390.4%
Skill of surgeon72.4–100%[8]
Method[11]
 Combined dye and isotope86.3–96.0%
 Dye85.7–90.4%
 Isotope86.3–97.8%
Number of SLN removed[10, 12]
 182.3–89.1%
 393.1–98.9%
 599%
Medial tumorDecreases[8]
Age > 50Decreases[8]
ObesityDecreases[10, 13]