title: Ancient schwannoma presenting as a thoracic mass.
abstract: BACKGROUND
  Ancient schwannoma is a rare variant of schwannoma, histologically showing atypical features that may result in erroneous diagnosis of a malignant tumor. There are only few reported cases in literature.
  
  
  METHODS
  We report a case of a 34-year-old man who was found to have giant mediastinal tumor. He underwent thoracotomy to remove the mass, which was proven to be ancient schwannoma on histopathology.
  
  
  CONCLUSIONS
  Clinical and radiological findings are important aids for further consideration of surgical removal of these potentially respectable tumors with good outcome.
authors.affiliation: Department of Neurosurgery, Aga Khan University Hospital, PO Box 3500, Karachi, 74800, Pakistan.
authors.forename: Muhammad Zubair
authors.initials: MZ
authors.lastname: Tahir
authors.forename: Saulat H
authors.initials: SH
authors.lastname: Fatimi
authors.forename: S Ather
authors.initials: SA
authors.lastname: Enam
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000473:pathology* / Q000601:surgery*; D013125:Spinal Neoplasms / Q000473:pathology* / Q000601:surgery*; D013904:Thoracic Vertebrae