The European Association of Neuro-Oncology (EANO) began its collaboration with the European Organisation for Research and Treatment of Cancer (EORTC) in 2009. This partnership aimed to foster advancements in the field of neuro-oncology through combined efforts in research, education, and clinical practice. The first joint EORTC-EANO conference was held in 2009 in Hungary, which set the stage for future collaborative conferences aimed at promoting scientific exchange and improving the management of central nervous system malignancies.