Cancer is a complex disease. It is vital to cross-reference the opinions of professionals in the various care and research disciplines (oncologists, biologists, geneticists, anatomopathologists and radiologists, etc.) in order to gain the most comprehensive overview and offer each patient the best therapeutic option or direct them towards an appropriate clinical trial. The aim of the "DATA SCIENCE" programme is to draw on a large volume of data relating to the diagnosis and management of previously treated patients to facilitate comparison.