title: Giant ancient schwannoma of the posterior mediastinum cytologically misdiagnosed as a malignant tumour. A case report.
abstract: We report a case of a 45-year old woman who was found to have a giant mediastinal tumour with radiological degenerative changes. She underwent thoracotomy to remove the mass, which was eventually diagnosed histologically as an ancient schwannoma, whereas cytological interpretation of the accompanying pleural fluid was malignant. Ancient schwannoma is a rare variant of schwannoma, histologically showing atypical features that may result in erroneous diagnosis of a malignant tumour. Clinical and radiological findings are important aids for further consideration of surgical removal of these potentially resectable tumours.
authors.affiliation: Department of Thoracic Surgery, Kirikkale University School of Medicine, Kirikkale, Turkey. muratkara66@hotmail.com
authors.forename: M
authors.initials: M
authors.lastname: Kara
authors.forename: M
authors.initials: M
authors.lastname: Ozkan
authors.forename: S Dizbay
authors.initials: SD
authors.lastname: Sak
authors.forename: O
authors.initials: O
authors.lastname: Aksu
authors.forename: S
authors.initials: S
authors.lastname: Kavukçu
mesh_terms: D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D009442:Neurilemmoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D016066:Pleural Effusion, Malignant / Q000166:cytology; D014057:Tomography, X-Ray Computed