Society of Surgical Oncology – American Society for Radiation Oncology – American Society of Clinical Oncology Consensus Guideline on Margins for Breast-Conserving Surgery with Whole-Breast Irradiation in Ductal Carcinoma In Situ

This guideline applies to patients with ductal carcinoma in situ (DCIS) treated with whole-breast radiation therapy (WBRT). The primary question addressed in this guideline is “what margin width minimizes the risk of ipsi-lateral breast tumor recurrence (IBTR) in patients with DCIS receiving breast-conserving surgery?” The guideline developed from a consensus panel is intended to assist treating physicians and patients in the clinical decision-making process based on the best available evidence.