Extraspinal dural arteriovenous fistula in a patient with lipomyelodysplasia: value of MRI and MRA

Neuroradiology. 1999 Aug;41(8):579-83. doi: 10.1007/s002340050810.


Spinal dural arteriovenous fistulae are extremely rare in spinal dysraphism. A fistulous malformation within a lipomyelomeningocele has not been reported previously. A 50-year-old man presented with progressive paraparesis and bladder dysfunction. MRI revealed a large lumbar lipomyelomeningocele. A vascular malformation was indicated by abnormal signal in the thoracolumbar spinal cord and dilated perimedullary veins. Phase-contrast MRA demonstrated only the slow-flow veins of the fistula and an intradural ascending vein. Contrast-enhanced ultra-fast MRA gave excellent delineation of all parts of the fistula within the dysraphic lesion.

Publication types

  • Case Reports

MeSH terms

  • Arteriovenous Fistula / diagnosis*
  • Arteriovenous Fistula / etiology
  • Diagnosis, Differential
  • Dura Mater / blood supply*
  • Humans
  • Lipoma / complications*
  • Lipoma / pathology
  • Lumbosacral Region / pathology
  • Magnetic Resonance Angiography
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Neural Tube Defects / complications*
  • Neural Tube Defects / pathology
  • Spinal Cord / pathology