Clinically, oligometastatic breast cancer is characterized by solitary/few detectable lesions, usually limited to single organs, in which local therapy with curative intent could impact survival. This population of 'potentially curable' stage IV disease is estimated to be 1-10% of newly diagnosed patients with metastatic breast cancer (5). A multimodal approach is endorsed for these selected patients (5,6). The identification of patients with truly oligometastatic disease is challenging. Most published series refer to an era before modern imaging (i.e. positron emission tomography-computed tomography), and thus many patients were probably understaged, potentially leading to underestimation of the global effect of an aggressive local management.