title: Giant posterior fossa dural cavernoma in a child.
abstract: OBJECTIVE
  Extra-axial (dural) cavernomas are rare and constitutes 5% of all cavernomas. They are thought to arise from the venous plexus of the dura. They can reach large sizes before diagnosis and can have an aggressive presentation.
  
  
  METHODS
  The authors report a rare case of giant cavernoma based on the posterior fossa dura adjacent to the sigmoid sinus (sino-dural angle) in an 8-year-old boy which was excised with good outcome. The authors describe its clinico-radiological profile and outcome characteristics along with a comprehensive review of relevant literature.
  
  
  RESULTS
  This child underwent retromastiod craniectomy and complete excision of the dural cavernoma. The dural attachment was coagulated. Histopathological examination confirmed the diagnosis.
  
  
  CONCLUSIONS
  We report cavernoma needs to be considered in the differential diagnosis of a dural-based posterior fossa lesion in paediatric population as complete excision is possible.
authors.affiliation: Department of Neurosurgery, M S Ramaiah Institute of Neurosciences, M S Ramaiah Medical College, New BEL Road-54, Bangalore, India. anirudhbmc@yahoo.co.in.
authors.forename: Aniruddha Tekkatte
authors.initials: AT
authors.lastname: Jagannatha
authors.affiliation: Aster CMI Hospital, Bellary road-54, Bangalore, India.
authors.forename: Umesh
authors.initials: U
authors.lastname: Srikantha
authors.affiliation: Department of Neurosurgery, M S Ramaiah Institute of Neurosciences, M S Ramaiah Medical College, New BEL Road-54, Bangalore, India.
authors.forename: Kiran
authors.initials: K
authors.lastname: Khanapure
authors.affiliation: Department of Neurosurgery, M S Ramaiah Institute of Neurosciences, M S Ramaiah Medical College, New BEL Road-54, Bangalore, India.
authors.forename: Krishna Chaitanya
authors.initials: KC
authors.lastname: Joshi
authors.affiliation: Aster CMI Hospital, Bellary road-54, Bangalore, India.
authors.forename: Ravi Gopal
authors.initials: RG
authors.lastname: Varma
mesh_terms: D002648:Child; D003388:Cranial Fossa, Posterior / Q000000981:diagnostic imaging*; D003399:Craniotomy / Q000379:methods; D004388:Dura Mater / Q000000981:diagnostic imaging*; D005260:Female; D006392:Hemangioma, Cavernous / Q000000981:diagnostic imaging* / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D012888:Skull Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D015898:Tomography Scanners, X-Ray Computed; D016896:Treatment Outcome
keywords: Dural cavernoma; Extra-axial; Posterior fossa cavernoma; Sino-dural angle