Omission of axillary dissection after a positive sentinel lymph-node: Implications in the multidisciplinary treatment of operable breast cancer

•The number of metastatic axillary nodes is a prognostic factor in breast cancer.•Axillary dissection can be omitted in some women with a positive sentinel biopsy.•Lack of information on the axillary burden may influence adjuvant treatment choices.•Omission of axillary dissection involves a multidisciplinary decision process.