3rd ESO-ESMO international consensus guidelines for Advanced Breast Cancer (ABC 3).

• This ESO-ESMO ABC 5 Clinical Practice Guideline provides key recommendations for managing advanced breast cancer patients • It provides updates on the management of patients with all breast cancer subtypes, LABC, follow-up, palliative and supportive care • Updated diagnostic and treatment algorithms are also provided • All recommendations were compiled by a multidisciplinary group of international experts • Recommendations are based on available clinical evidence and the collective expert opinion of the authors