Fig. 1

Number and metastasis of lymph nodes in SLNB surgery. (A) The median number of lymph nodes in the SLNB only group and the SLNB & ALND group. (B) The proportions of patients with different number of positive SLNs in positive SLNB population. (C) The proportions of patients with different number of positive SLNs in negative FNAB group of positive SLNB population. (D) The proportions of patients with different number of positive SLNs in positive FNAB group of positive SLNB population. (E) The comparison of the proportion of patients with lymph node metastases between negative FNAB and positive FNAB group in SLNB only population. (F) The comparison of the proportion of patients with lymph node metastases between negative FNAB and positive FNAB group in SLNB & ALND population.