To prevent tumors as early as possible, Patrizia Paterlini Brechot, a Franco-Italian biologist and oncologist, has found a way to detect circulating tumor cells in the blood. Sophie Lucas, following in the footsteps of Belgian professor Thierry Boon-Falleur, is making progress in immunotherapy, which is showing increasingly spectacular results. As for Dr. Krishna Clough, he practices oncoplastic surgery to treat his patients. With this approach, the morphology of the breast is preserved while the cancer is removed.