title: Primary cerebral fibrosarcoma in a child.
abstract: OBJECTIVE
  To describe the case of a primary cerebral fibrosarcoma in a child.
  
  
  METHODS
  A 6-year-old boy presented with a history of headache, drowsiness, vomiting and seizures. He was referred to our institution and died shortly upon arrival to the ER. The autopsy revealed a large left frontoparietal mass with histopathologic features characteristic of fibrosarcoma. Immunohistochemical and ultrastructural studies allowed the exclusion of other mimickers such as meningiomas, and neoplasms of glial or neuronal origin. No other growths were found in the CNS or in other parts of the body.
  
  
  CONCLUSIONS
  Brain fibrosarcoma is an exceedingly uncommon tumor. Only 41 cases have been reported to date. The diagnosis of fibrosarcoma must be based on the identification of a predominant herringbone architectural pattern, and immunohistochemical features, although the latter are of limited diagnostic value, its importance being that they facilitate the exclusion of other entities considered in the differential diagnosis.
authors.affiliation: Pathology Department, Hospital General del Sur, Maracaibo, Zulia, Venezuela.
authors.forename: G
authors.initials: G
authors.lastname: Torres
authors.forename: F
authors.initials: F
authors.lastname: Petit
authors.forename: V
authors.initials: V
authors.lastname: Vilchez
authors.forename: Z
authors.initials: Z
authors.lastname: Romero
authors.forename: S
authors.initials: S
authors.lastname: Dorfman
authors.forename: D
authors.initials: D
authors.lastname: Cardozo
authors.forename: J
authors.initials: J
authors.lastname: Cardozo
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005354:Fibrosarcoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D008579:Meningioma / Q000175:diagnosis / Q000473:pathology; D015173:Supratentorial Neoplasms / Q000175:diagnosis* / Q000473:pathology