title: Acquired dural arteriovenous malformations of the lumbar spine: case report.
abstract: OBJECTIVE
  Although dural arteriovenous malformations (AVMs) are considered to be acquired, no conclusive evidence has been obtained. The first case of dural AVMs of the lumbar spine that showed evidence supporting their being acquired lesions is described.
  
  
  METHODS
  A 27-year-old man was admitted to our hospital in November 1994, presenting with increasing pain and numbness in the left buttock to the left lower limb. Myelography and arteriography showed dural AVMs of the lumbar spine. However, the myelogram obtained before surgery for lumbar disc herniation in 1987 provided no findings suggestive of intradural vascular anomalies.
  
  
  METHODS
  Embolization procedures via the left iliolumbar arteries were performed. However, there was no improvement of the symptoms, and the patient underwent surgical treatment.
  
  
  CONCLUSIONS
  The present report documents a case of dural AVMs of the lumbar spine that showed evidence supporting their being acquired lesions.
authors.affiliation: Department of Orthopaedic Surgery, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Sugitani, Japan.
authors.forename: O
authors.initials: O
authors.lastname: Yoshino
authors.forename: H
authors.initials: H
authors.lastname: Matsui
authors.forename: N
authors.initials: N
authors.lastname: Hirano
authors.forename: H
authors.initials: H
authors.lastname: Tsuji
mesh_terms: D000328:Adult; D000792:Angiography; D001165:Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis* / Q000628:therapy*; D004388:Dura Mater / Q000098:blood supply* / Q000601:surgery; D004621:Embolization, Therapeutic; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000150:complications / Q000601:surgery; D008159:Lumbar Vertebrae / Q000098:blood supply* / Q000601:surgery; D008297:Male; D009192:Myelography; D011184:Postoperative Period; D019233:Retreatment