The role of routine sentinel lymph node biopsy in elderly patients with breast cancer

Recent guidelines from the Society of Surgical Oncology recommended against the routine use of sentinel lymph biopsy (SLN) in women over the age of 70 years with pT1 ER-positive breast cancer. The aim of this study was to evaluate the use of axillary staging with SLN in patients aged older than 70 with early-stage breast cancer. A retrospective review identified all women over 70 years of age with a new diagnosis of invasive breast cancer who proceeded to therapeutic surgery between 2011 and 2020 at St.