Breast cancer is the first cancer of women in the world and in Tunisia with an incidence of 46.3 and 37.8 cases / 100 000 inhabitants per year respectively. It is the second cause of cancer mortality in women in Tunisia with 17 deaths / 100 000 inhabitants per year.The management of metastatic breast cancer has undergone several advances over the past decades leading to an improvement in patient survival. However, 15 to 30% of patients will develop...