1. Neuro‐Oncology Department Hospices Civils of Lyon Lyon France
2. Neuro‐Oncology Department Centre Georges François Leclerc Dijon France
3. Neuro‐Oncology Department Hôpital Foch Suresnes France
4. Neuro‐Oncology Department Institut Universitaire du Cancer de Toulouse Toulouse France
5. Neuro‐Surgery Department Hospices Civils of Lyon Lyon France
6. Neuropathology Department Hospices Civils of Lyon Lyon France
7. Cancer Research Center of Lyon, INSERM U1052, CNRS UMR 5286, Cancer Cell Plasticity Department Transcriptome Diversity in Stem Cells Laboratory Lyon France
8. Radiology Department University Hospital of St‐Etienne St‐Etienne France
9. Neuro‐Surgery Department University Hospital of St‐Etienne St‐Etienne France
10. Department of Neurology 2‐Mazarin, APHP University Hospital Pitié Salpêtrière‐Charles Foix Paris France
11. Department of Pathology and Neuropathology La Timone Hospital, Aix Marseille University Marseille France
12. Department of Pathology University Hospital of Saint Etienne Saint Etienne France
13. Oncology Department Hôpital Privé de la Loire Saint Etienne France