MRI appearance of lumbosacral spine in a patient with ankylosing spondylitis and cauda equina syndrome

Yang Kai Fan, Sho Jen Cheng, Jon Kway Huang

Research output: Contribution to journalArticle

1 Citation (Scopus)


Cauda equina syndrome is an unusual complication of ankylosing spondylitis. We present a case of a 68-year-old woman with long-standing ankylosing spondylitis who developed cauda equina syndrome. MRI revealed a characteristic widening of the lumbosacral thecal sac and numerous dorsal thecal diverticula. MRI is a powerful, noninvasive tool to confirm the diagnosis and exclude a treatable compressive lesion and provides a good alternative to myelography, an invasive and potentially dangerous procedure in such patients.

Original languageEnglish
Pages (from-to)217-221
Number of pages5
JournalChinese Journal of Radiology
Issue number4
Publication statusPublished - Aug 1 2004
Externally publishedYes



  • Ankylosing spondylitis
  • Arachnoiditis
  • Cauda equina syndrome
  • Magnetic resonance imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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