title: Concomitant conus medullaris ependymoma and filum terminale lipoma: case report.
abstract: OBJECTIVE
  Ependymomas of the conus medullaris-cauda equina-filum terminale region are typically solitary lesions. In this report, we describe the clinical presentation, radiographic findings, operative details, and pathological features of a patient with a conus medullaris ependymoma and a filum terminale lipoma.
  
  
  METHODS
  A 40-year-old woman presented with increasing low back pain and bowel and bladder dysfunction. Magnetic resonance imaging revealed a partially cystic enhancing lesion at the conus medullaris and a T1-weighted hyperintense mass within the filum terminale.
  
  
  METHODS
  An L2-L3 laminotomy/laminoplasty was performed for gross total resection of the mass. Histopathological examination demonstrated a conus medullaris ependymoma and filum terminale lipoma. The patient experienced complete resolution of her preoperative symptoms.
  
  
  CONCLUSIONS
  Spinal cord ependymomas are almost exclusively single lesions and their coexistence with other pathological entities is rare. In this report, we describe a patient with a concomitant conus medullaris ependymoma and filum terminale lipoma.
authors.affiliation: Department of Neurosurgery, Johns Hopkins Hospital, Baltimore, Maryland 21287, USA.
authors.forename: Gary L
authors.initials: GL
authors.lastname: Gallia
authors.forename: Peter C
authors.initials: PC
authors.lastname: Burger
authors.forename: Ian
authors.initials: I
authors.lastname: Suk
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Bagley
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Wolinsky
authors.forename: Ira M
authors.initials: IM
authors.lastname: Garonzik
authors.forename: Ziya L
authors.initials: ZL
authors.lastname: Gokaslan
mesh_terms: D000328:Adult; D002420:Cauda Equina / Q000473:pathology / Q000601:surgery*; D004806:Ependymoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D007796:Laminectomy; D008067:Lipoma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D008159:Lumbar Vertebrae / Q000473:pathology / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D009378:Neoplasms, Multiple Primary / Q000601:surgery*; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D013120:Spinal Cord Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*