title: Intradural cranial chordoma: a rare presentation of an uncommon tumor. Surgical experience and review of the literature.
abstract: OBJECTIVE
  Intracranial intradural chordomas are extremely rare lesions, and only a few cases have been reported in the neurosurgical literature. The authors performed a retrospective analysis of cases treated at their institutions. They present an illustrative surgical scenario and discuss the published literature, pathogenesis, and histopathological features as well as available follow-up data on the clinical behavior of these intradural lesions.
  
  
  METHODS
  The authors reviewed clinical, neuroimaging, operative and follow-up data from a series of 79 chordomas treated at their institutions over the last 17 years. They found that the tumors were confined exclusively to the intradural compartment in only three cases. Staining for MIB-1 was performed to support the differential diagnosis between ecchordosis physaliphora and intradural chordoma, and in all three patients the neoplastic nature of the lesions was confirmed. None of these three cases showed recurrence of the lesion at midterm follow up.
  
  
  CONCLUSIONS
  Complete resection, followed by close clinical and neuroradiological follow up, is warranted in cases of intradural cranial chordoma.
authors.affiliation: Department of Neurosurgery, George Washington University Medical Center, Washington, DC 20037, USA. roberti.fabio@gmail.com
authors.forename: Fabio
authors.initials: F
authors.lastname: Roberti
authors.forename: Laligam N
authors.initials: LN
authors.lastname: Sekhar
authors.forename: Robert V
authors.initials: RV
authors.lastname: Jones
authors.forename: Donald C
authors.initials: DC
authors.lastname: Wright
mesh_terms: D001932:Brain Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000601:surgery*; D002817:Chordoma / Q000378:metabolism / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D019394:Ki-67 Antigen / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D016896:Treatment Outcome
chemical_list: D019394:Ki-67 Antigen