OBJECTIVES:
Compare the identification rate of sentinel lymph node in breast cancer patients with different tumor biopsy methods.
Evaluate the false-negative rates of sentinel lymph nodes in patients with different tumor biopsy methods.
OUTLINE:
The patients were randomly divided into three group, vacuum-assisted biopsy, core needle biopsy, and intraoperative excisional biopsy. Preoperative vacuum-assisted biopsy and core needle biopsy were performed in 10 days before the final surgery. All patients received dual tracer (radiolabeled colloid and blue dye) guided SLNB.