Evaluation of the Role of Axillary Lymph Node Fine-Needle Aspiration Cytology in Early Breast Cancer With or Without Neoadjuvant Chemotherapy.

The false-negative rate for FNAC in the primary surgery group was high; however, SLNB was the proper axillary staging procedure for NAC patients who have clinically suspicious AxLN metastases on radiologic examination but negative FNAC results.