title: Symptomatic expansile vertebral hemangioma causing conus medullaris compression.
abstract: OBJECTIVE
  To present a case of symptomatic, expansile L1 vertebral hemangioma.
  
  
  METHODS
  A 46-year-old man presented with progressive neurologic changes and insidious onset of low back pain.
  
  
  RESULTS
  After a trial of 3 visits of conservative chiropractic care, no improvement was noted. Magnetic resonance imaging was obtained, revealing an expansile hemangioma with extra-osseous component compromising the conus medullaris at the level of the L1 lumbar vertebra. Neurosurgical intervention resulted in clinical improvement.
  
  
  CONCLUSIONS
  Primary care physicians treating patients with low back pain should be aware of neurologic red flags requiring prompt attention. Magnetic resonance imaging is the imaging modality of choice when evaluating a neurologic abnormality presumably related to a space-occupying lesion. Although a disk herniation is the most common cause of these symptoms, clues in the history and examination must prompt physicians to expand their differential diagnosis to include a variety of other extradural masses.
authors.affiliation: Department of Diagnostic Imaging, National University of Health Sciences, Lombard, IL, USA. jrich@nuhs.edu
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Rich
authors.forename: Thomas C
authors.initials: TC
authors.lastname: Donahue
authors.forename: Timothy J
authors.initials: TJ
authors.lastname: Mick
mesh_terms: D019299:Decompression, Surgical; D006119:Groin; D006391:Hemangioma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery / Q000628:therapy; D006801:Humans; D007796:Laminectomy; D017116:Low Back Pain / Q000209:etiology; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008297:Male; D052801:Male Urogenital Diseases / Q000209:etiology; D026882:Manipulation, Chiropractic; D008875:Middle Aged; D010146:Pain / Q000209:etiology; D011859:Radiography; D013117:Spinal Cord Compression / Q000209:etiology*; D013125:Spinal Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000601:surgery / Q000628:therapy; D013848:Thigh; D016896:Treatment Outcome