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AJR Teaching File: Lumbar Radiculopathy and Intraspinal Mass

Scott Drummond1, Kevin P. Banks2 and Stephen Brown2

1 Lake Erie College of Osteopathic Medicine, Erie, PA.
2 All authors: Department of Radiology, Brooke Army Medical Center, MCHE-DR, 3851 Roger Brooke Dr., Fort Sam Houston, TX 78234.


Figure 1
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  		Fig. 1A —49-year-old white man with 24-month history of gradually worsening lower back pain, right lower extremity pain, and weakness. T1-weighted sagittal image of lumbosacral spine shows well-defined isointense intradural mass at level of L4–L5 vertebrae. Note investment of several surrounding nerves and vessels as well as lateral displacement of remaining nerves.

 

Figure 2
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  		Fig. 1B —49-year-old white man with 24-month history of gradually worsening lower back pain, right lower extremity pain, and weakness. Fat-saturated T2-weighted fast spin-echo sagittal image of lumbosacral spine shows lesion to be almost uniformly hyperintense.

 

Figure 3
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  		Fig. 1C —49-year-old man with 24-month history of gradually worsening lower back pain, right lower extremity pain, and weakness. Contrast-enhanced fat-saturated T1-weighted sagittal image of lumbosacral spine shows marked enhancement of mass. Venous congestion was noted both superiorly and inferiorly (images not shown).

 

Figure 4
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  		Fig. 1D —49-year-old man with 24-month history of gradually worsening lower back pain, right lower extremity pain, and weakness. Axial T2-weighted image through intrathecal mass shows presence of flow voids in lesion.

 

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