title: Posterior fossa clear cell meningioma without dural attachment in a child.
abstract: BACKGROUND
  Meningiomas are relatively uncommon in childhood. They represent 1% to 2% of all intracranial tumours of infancy and childhood and 1.5% to 1.8% of all intracranial meningiomas. Occasionally, meningiomas may develop without dural attachment. Clear cell meningioma is a histological distinctive uncommon variant of meningioma that may behave aggressively with local recurrence and progression as well as cerebrospinal fluid-borne metastasis. Meningiomas near the craniocervical junction represent challenging tumours, requiring special considerations because of the vicinity of the medulla oblongata, the lower cranial nerves and the vertebral artery.
  
  
  METHODS
  In this study, the authors present a rare case of posterior fossa clear cell meningioma without dural attachment in a child with severe brainstem and cervical spinal cord displacement and discuss the clinical and radiological features as well as treatment considerations.
authors.affiliation: Department of Neurosurgery, Division of Pediatric Neurosurgery, Hospital Universitario Infantil La Fe, Avda Campanar s/n., 46009 Valencia, Spain. mirandalloret@gmail.com
authors.forename: Pablo
authors.initials: P
authors.lastname: Miranda
authors.forename: Juan Antonio
authors.initials: JA
authors.lastname: Simal
authors.forename: Manuel
authors.initials: M
authors.lastname: Vila
authors.forename: Miguel
authors.initials: M
authors.lastname: Hernández
authors.forename: Francisco
authors.initials: F
authors.lastname: Menor
authors.forename: José Andrés
authors.initials: JA
authors.lastname: Alvarez-Garijo
mesh_terms: D001933:Brain Stem / Q000473:pathology; D002648:Child; D003388:Cranial Fossa, Posterior / Q000473:pathology* / Q000601:surgery; D004388:Dura Mater / Q000473:pathology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000473:pathology* / Q000601:surgery; D008579:Meningioma / Q000473:pathology* / Q000601:surgery; D019635:Neurosurgical Procedures / Q000379:methods; D013116:Spinal Cord / Q000473:pathology; D016896:Treatment Outcome