Accuracy and axilla sparing potentials of sentinel lymph node biopsy with methylene blue alone performed before versus after neoadjuvant chemotherapy in breast cancer: a single institution experience

摘要

The timing of sentinel lymph node biopsy (SLNB) of breast cancer in the neoadjuvant setting is still controversial. We retrospectively analyzed a Chinese patient cohort with neoadjuvant chemotherapy (NAC) to evaluate the accuracy and axilla sparing potentials of different SLNB timings with methylene blue alone for lymphatic mapping.