Abstract
Background: Axillary ultrasound (US) with fine needle aspiration biopsy (FNAB) of suspicious lymph nodes helps identify patients (pts) with axillary metastases preoperatively, avoiding a 2-step axillary procedure. However, it does not accurately differentiate between low and high axillary tumor burden. Our aim was to determine the rationale of preoperative axillary US in screen-detected breast cancer by finding out the proportion of screen-detected pts in whom axillary US changes axillary surgical approach and to evaluate the potential of overtreatment as a consequence of a positive FNAB in pts that otherwise meet the ACOSOG Z0011 eligibility criteria.
Published Version
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