What is the role of MRI in the workup of progressive polyradiculopathy in HIV infection?

Updated: Nov 05, 2019
  • Author: Emad R Noor, MBChB; Chief Editor: Niranjan N Singh, MBBS, MD, DM, FAHS, FAANEM  more...
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MRI with contrast or myelography is useful to exclude cauda equina or spinal cord compressive lesions resulting from lymphoma, syphilis, or toxoplasmosis. Possible findings include the following:

  • Meningeal enhancement consistent with arachnoiditis

  • Thickened nerve roots or root enhancement in cauda equina can be seen. This finding is nonspecific and inconsistently seen in CMV- associated polyradiculopathy.

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