title: Ossified retroperitoneal malignant Schwannoma with spinal leptomeningeal metastases.
abstract: A malignant retroperitoneal schwannoma in a patient without von Recklinghausen's disease is reported. Ossification in the tumour, shown on CT and MRI in this previously untreated patient is exceptional. MRI demonstration of spinal leptomeningeal metastases supports the hypothesis of haematogenous metastatic spread of systemic malignant tumours to the leptomeningeal spaces.
authors.affiliation: Department of Radiology, University Hospital Gent, Belgium.
authors.forename: K
authors.initials: K
authors.lastname: Mortelé
authors.forename: M
authors.initials: M
authors.lastname: Lemmerling
authors.forename: L
authors.initials: L
authors.lastname: Defreyne
authors.forename: F
authors.initials: F
authors.lastname: Speleman
authors.forename: C
authors.initials: C
authors.lastname: De Potter
authors.forename: S
authors.initials: S
authors.lastname: Van Belle
authors.forename: M
authors.initials: M
authors.lastname: Kunnen
mesh_terms: D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000556:secondary*; D008578:Meninges / Q000473:pathology; D008875:Middle Aged; D009360:Neoplastic Cells, Circulating; D009442:Neurilemmoma / Q000175:diagnosis / Q000556:secondary*; D009999:Ossification, Heterotopic / Q000175:diagnosis*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis*