title: Fluid-fluid levels in cystic lumbosacral schwannomas: a report of three cases.
abstract: Magnetic resonance imaging features of three benign cystic lumbosacral schwannomas, which showed multiple fluid-fluid levels, are described. One of the tumours showed bone destruction with fluid-fluid levels that closely mimicked an aneurysmal bone cyst. Pathological examination confirmed haemorrhage as the cause of fluid-fluid levels in the tumours. Though a rare finding, fluid-fluid levels with bone destruction can also be caused by nerve sheath tumours and hence must be included in the list of differential diagnoses of spinal tumours.
authors.affiliation: Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, India.
authors.forename: K
authors.initials: K
authors.lastname: Santhosh
authors.forename: C
authors.initials: C
authors.lastname: Kesavadas
authors.forename: B
authors.initials: B
authors.lastname: Thomas
authors.forename: A K
authors.initials: AK
authors.lastname: Gupta
authors.forename: T R
authors.initials: TR
authors.lastname: Kapilamoorthy
authors.forename: V V
authors.initials: VV
authors.lastname: Radhakrishnan
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media; D005260:Female; D006470:Hemorrhage / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008161:Lumbosacral Region; D008279:Magnetic Resonance Imaging; D009442:Neurilemmoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013125:Spinal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
chemical_list: D003287:Contrast Media