This study is a prospective, non-randomized cohort study for patients with chest wall-recurrent/invasive breast cancer treated with full thickness chest wall resection (FTCWR), chemotherapy and/or radiation. The design of this study was created using the framework for surgical trials set out by the IDEAL collaboration (Idea, Development, Exploration, Assessment, Long-Term follow up), 14 after a systematic evaluation of the current literature had been completed. Given that no prospective evidence exists in this patient population and based on the IDEAL framework, this study is designed to create a prospective registry.