ARRS Case of the Week

NEURORADIOLOGY

Case Author: Frank J. Minja, MD, Yale University School of Medicine

History

25-year-old patient who presented with rapidly progressive lower extremity weakness and now has upper extremity involvement.

Findings

Sagittal contrast-enhanced T1-weighted MR image (A) shows diffuse enhancement of the cauda equina nerve roots (arrows) and leptomeningeal enhancement around the conus medullaris. Axial contrast-enhanced T1-weighted MR image at the L1 vertebral body level (B) shows predominant enhancement of the anterior (ventral) spinal nerve roots (arrows) compared with the posterior (dorsal) spinal nerve roots.

 

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