Purpose of review: Radiotherapy has been one of the cornerstones of treatment for breast cancer for more than a century and has contributed to conservation of the breast and improved locoregional control after mastectomy. This review assesses the most recent evidence generated by clinical scientists in the field of radiotherapy for breast cancer.
Recent findings: Results from mature trials investigating the role of radiotherapy in breast cancer treatment and the publication of meta-analyses of treatment effects have shown that in addition to improvements in local control, a survival benefit is obtained in several disease settings. These include breast-conserving therapy and postmastectomy radiotherapy. Further, improved diagnostic abilities and surgical techniques, together with advances in treatment delivery, will help to increase the therapeutic ratio of radiotherapy.
Summary: There is increasing evidence for long-term benefits of radiotherapy for breast cancer and a reduction in the risks of late side effects in recent decades. This can have a profound impact on clinical practice in the future, leading to a broadening and individualizing of the indications for radiotherapy and improvements in patient survival.