Axillary Staging of Early‐Stage Invasive Breast Cancer by Ultrasound‐Guided Fine‐Needle Aspiration Cytology

Abstract

Cortical thickness of greater than 3.5 mm in the most suspicious nodes is appropriately predictive of patients with 3 or more tumor-involved axillary nodes. When this criterion for US-guided FNAC was adopted, a group of patients with 1 or 2 metastatic nodes could be spared unnecessary 1-step axillary lymph node dissection.