Locally advanced breast cancer and postmastectomy radiotherapy

Most patients with locally advanced breast cancer should be treated with a combination of chemotherapy, mastectomy (with immediate reconstruction if the patient so desires), and radiotherapy. Nonetheless, it seems reasonable to offer breast-conserving treatment to selected individuals who respond well to neoadjuvant therapy. Postmastectomy radiotherapy clearly reduces the risk of local-regional and distant failure for patients with earlier-stage invasive breast cancer with involved axillary lymph nodes. Certain subgroups of patients, however, may have such low local-regional failure rates that patients will not routinely find the benefits of radiotherapy sufficient to undergo such treatment. Further investigation of this issue is needed.