In light of the DBCG-IMN study, are you treating internal mammary nodes in women with positive axillary LN who have path CR after neoadjuvant chemotherapy?

For those patients who have a CR after neoadjuvant therapy, there is considerable controversy regarding the need for any radiation after mastectomy or any regional nodal RT after breast conserving therapy. It is a setting of true equipoise given the available data. In fact, a recent analysis of radiation use after neoadjuvant from the Z1071 trial (Haffty et al, Red Journal 2016), showed the use of regional nodal RT in those patients who converted from node positive to node negative to be about 5...