title: [Introduction].
authors.affiliation: Service de neurochirurgie, hôpital de Bellevue, CHU, 17 boulevard Pasteur, 42055 Saint-Etienne cedex 02, France.
authors.forename: J
authors.initials: J
authors.lastname: Brunon
authors.forename: J
authors.initials: J
authors.lastname: Chazal
mesh_terms: D016543:Central Nervous System Neoplasms / Q000175:diagnosis / Q000601:surgery; D020786:Hemangioma, Cavernous, Central Nervous System / Q000175:diagnosis / Q000601:surgery; D019635:Neurosurgical Procedures