title: Retroperitoneal mesenchymal chondrosarcoma mimicking a large retroperitoneal sacral schwannoma.
abstract: We report a case of retroperitoneal chondrosarcoma in which preoperative radiological study induced to a possible diagnosis of sacral schwannoma. A 25-year-old woman was admitted to our neurosurgical institute for a progressive sciatic pain with gait difficulties with a sudden radicular deficit with right positive Lasegue's sign at 30 degrees, loss of Achilles reflex, sensory deficit on right S1 dermatome, and complete motor deficit of right plantar flexion. We performed an en bloc removal of the lesion via an anterior retroperitoneal approach. We believe that the treatment of choice is radical surgical excision of the tumor with complete en-bloc removal of the lesion; postoperative radiotherapy and chemotherapy should be valuated case by case.
authors.affiliation: Chair of Neurosurgery, II Faculty of Medicine, University of Rome La Sapienza, S.Andrea Hospital, Rome, Italy. gdandrea2002@yahoo.it
authors.forename: Giancarlo
authors.initials: G
authors.lastname: D'Andrea
authors.forename: Emanuela
authors.initials: E
authors.lastname: Caroli
authors.forename: Michela Giuli
authors.initials: MG
authors.lastname: Capponi
authors.forename: Francesco
authors.initials: F
authors.lastname: Scicchitano
authors.forename: Mattia Falchetto
authors.initials: MF
authors.lastname: Osti
authors.forename: Carlo
authors.initials: C
authors.lastname: Bellotti
authors.forename: Luigi
authors.initials: L
authors.lastname: Ferrante
mesh_terms: D000328:Adult; D018211:Chondrosarcoma, Mesenchymal / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D004576:Electromyography; D005260:Female; D020233:Gait Disorders, Neurologic / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009460:Neurologic Examination; D019635:Neurosurgical Procedures; D010146:Pain / Q000209:etiology; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D012445:Sacrococcygeal Region; D020426:Sciatic Neuropathy / Q000209:etiology; D013126:Spinal Nerve Roots / Q000503:physiopathology; D014057:Tomography, X-Ray Computed