title: Descriptive epidemiology of 13,038 newly diagnosed and histologically confirmed meningiomas in France: 2006-2010.
abstract: OBJECTIVE
  This work describes the clinical epidemiology and pathology for patients undergoing surgery for newly diagnosed meningiomas in France between 2006 and 2010.
  
  
  METHODS
  The methodology is based on a multidisciplinary national network previously established by the French Brain Tumor DataBase (FBTDB) (in French: Recensement national histologique des tumeurs primitives du système nerveux central [RnhTPSNC]), and the active participation of the scientific societies involved in neuro-oncology in France.
  
  
  RESULTS
  From 2006 to 2010, 13,038 incident cases of meningioma with histological validation were identified and analyzed (9769 women, 3269 men, resection 98.2%, cryopreservation 20.5%). For each histological subtype of meningioma (meningothelial, fibrous, transitional, psammomatous, angiomatous, rare variety, microcystic, secretory, lymphoplasmacyte-rich, clear-cell, chordoid, rhabdoid, metaplastic, atypical, papillary, anaplastic and not otherwise specified), number of cases, sex, median age, cryopreservation and surgery were reported. Among the various histological subtypes, atypical meningioma (grade II) slightly, but significantly, increased after 2007. Headache, sensory-motor impairments and seizures were the most frequent clinical symptoms. Time between the first clinical symptom and surgery ranged from 0 to 314 months, and was <3 months in 37% of cases. At the time of surgery, 9% of patients were asymptomatic.
  
  
  CONCLUSIONS
  Given the number of meningiomas not histologically-validated, we can estimate that the gross incidence rate for meningiomas operated in France is about 4.2 per 100,000 person/year. To our knowledge, this work is the most important study evaluating the different subtypes of meningiomas and it validates the relevance of histological databases for central nervous system tumors.
authors.affiliation: Department of neurosurgery, Gui-de-Chauliac hospital, CHU Montpellier, 34295 Montpellier cedex 5, France; Inserm U 1051, INM Montpellier, 34091 Montpellier, France.
authors.forename: S
authors.initials: S
authors.lastname: Zouaoui
authors.affiliation: Inserm U 1051, INM Montpellier, 34091 Montpellier, France; Department of medical oncology and department of radiation oncology, ICM, 34298 Montpellier cedex 5, France.
authors.forename: A
authors.initials: A
authors.lastname: Darlix
authors.affiliation: Department of pathology, Gui-de-Chauliac hospital, CHU Montpellier, 34295 Montpellier cedex 5, France.
authors.forename: V
authors.initials: V
authors.lastname: Rigau
authors.affiliation: Department of epidemiology, French Brain Tumor Database, GNOLR, Registre des Tumeurs de l'Hérault, ICM, 34298 Montpellier cedex 5, France.
authors.forename: H
authors.initials: H
authors.lastname: Mathieu-Daudé
authors.affiliation: Department of epidemiology, French Brain Tumor Database, GNOLR, Registre des Tumeurs de l'Hérault, ICM, 34298 Montpellier cedex 5, France.
authors.forename: F
authors.initials: F
authors.lastname: Bauchet
authors.affiliation: Registre des Tumeurs de l'Hérault, ICM, 34298 Montpellier cedex 5, France.
authors.forename: F
authors.initials: F
authors.lastname: Bessaoud
authors.affiliation: Department of Biostatistics, IURC, 34095 Montpellier, France; BESPIM, CHU Nîmes, 30029 Nîmes, France.
authors.forename: P
authors.initials: P
authors.lastname: Fabbro-Peray
authors.affiliation: Registre des Tumeurs de l'Hérault, ICM, 34298 Montpellier cedex 5, France.
authors.forename: B
authors.initials: B
authors.lastname: Trétarre
authors.affiliation: Inserm U 911, department of neuropathology, hôpital de La Timone, université de la Méditerranée, 13005 Marseille, France.
authors.forename: D
authors.initials: D
authors.lastname: Figarella-Branger
authors.affiliation: Department of neuro-oncology, CHU Poitiers, 86021 Poitiers cedex, France.
authors.forename: L
authors.initials: L
authors.lastname: Taillandier
authors.affiliation: Department of neurosurgery, CHU Bordeaux, 33000 Bordeaux, France.
authors.forename: H
authors.initials: H
authors.lastname: Loiseau
authors.affiliation: Department of neurosurgery, Gui-de-Chauliac hospital, CHU Montpellier, 34295 Montpellier cedex 5, France; Inserm U 1051, INM Montpellier, 34091 Montpellier, France. Electronic address: l-bauchet@chu-montpellier.fr.
authors.forename: L
authors.initials: L
authors.lastname: Bauchet
mesh_terms: D005602:France / Q000453:epidemiology; D006801:Humans; D008577:Meningeal Neoplasms / Q000453:epidemiology* / Q000473:pathology; D008579:Meningioma / Q000453:epidemiology* / Q000473:pathology
keywords: Base de données; Database; Meningioma; Méningiome; Neuro-epidemiology; Neuro-oncologie; Neuro-oncology; Neuro-épidemiologie; Neurochirurgie; Neuropathologie; Neuropathology; Neurosurgery