Subdermal re-injection: a method to increase surgical detection of the sentinel node in breast cancer without increasing the false-negative rate

PurposeThe aim of this study was to evaluate in breast cancer whether subdermal (SB) re-injection improves surgical detection (SD) of the sentinel node (SN) in patients with negative lymphoscintigraphy on peritumoral (PT) injection, without increasing the false-negative (FN) rate.