Reconstructive techniques to correct a BCT defect can be applied in three settings: the immediate, the delayed-immediate, and the delayed time frame. Immediate reconstructions occur at the time of BCT. Delayed-immediate reconstruction occurs once fi nal margin status has been confi rmed, but prior to the delivery of radiation therapy. Delayed reconstruction by defi nition refers to all reconstructions that occur after BCT and whole-breast radiation has been completed. The majority of patients presenting with poor outcomes following BCT do so after the delivery of radiation therapy (delayed group).