title: Intraventricular schwannoma in a child. Literature review and case illustration.
abstract: BACKGROUND
  Intraventricular schwannoma remains a rare entity in the literature. Controversy exists on the possible pathogenesis of such a tumor within cerebral ventricles. Literature is sparse on tumor characteristics and differences between pediatric and adult patients.
  
  
  METHODS
  We present a case of intraventricular schwannoma in a 9-year-old patient presenting with headache, hemiparesis, and focal seizure. Brain CT scan and MRI revealed an intraventricular tumor within left atrium of lateral ventricle. The patient underwent total resection of the tumor via posterior parietal approach. Histopathological exam was in favor of schwannoma. Postoperative brain MRI and MRS showed no recurrence after 18 months.
  
  
  CONCLUSIONS
  Our review of the literature indicates there are some significant differences between pediatric and adult cases in different aspects including gender predominance, intraventricular location, malignant transformation, tendency for recurrence, and surgical outcome. This needs to be taken into account in the literature.
authors.affiliation: Department of Neurosurgery, Bouali Teaching Hospital, Tehran Medical Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Hesam
authors.initials: H
authors.lastname: Abdolhosseinpour
authors.affiliation: Department of Neurosurgery, Bouali Teaching Hospital, Tehran Medical Branch, Islamic Azad University, Tehran, Iran. payman.vahedi@gmail.com.|Department of Neurological Surgery, Thomas Jefferson University, Philadelphia, PA, USA. payman.vahedi@gmail.com.
authors.forename: Payman
authors.initials: P
authors.lastname: Vahedi
authors.affiliation: Department of Pathology, Bouali Teaching Hospital, Tehran Medical Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Minoo
authors.initials: M
authors.lastname: Saatian
authors.affiliation: Department of Pediatrics, Bouali Teaching Hospital, Tehran Medical Branch, Islamic Azad University, Tehran, Iran.
authors.forename: AliReza
authors.initials: A
authors.lastname: Entezari
authors.affiliation: Department of Anesthesiology, Bouali Teaching Hospital, Tehran Medical Branch, Islamic Azad University, Tehran, Iran.
authors.forename: Mahnaz
authors.initials: M
authors.lastname: Narimani-Zamanabadi
authors.affiliation: Seattle Science Foundation, Seattle, WA, USA.
authors.forename: Richard Shane
authors.initials: RS
authors.lastname: Tubbs
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging; D018959:CD57 Antigens / Q000378:metabolism; D002551:Cerebral Ventricle Neoplasms / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery*; D002648:Child; D005904:Glial Fibrillary Acidic Protein / Q000378:metabolism; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008279:Magnetic Resonance Imaging; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D018396:Mucin-1 / Q000378:metabolism; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery*; D009418:S100 Proteins / Q000378:metabolism; D015898:Tomography Scanners, X-Ray Computed
chemical_list: D018959:CD57 Antigens; D005904:Glial Fibrillary Acidic Protein; D018396:Mucin-1; D009418:S100 Proteins
keywords: Brain tumor; Child; Hydrocephalus; Intraventricular; Schwannoma