63-year-old with acute low back pain extending down left leg with pain and numbness
axial at L5/S1
T2 sagittal at left side
axial pre and post Gad at L5/S1 leve
T1 sagittal pre and post Gad at left side
There is a large
left foraminal and far lateral soft tissue mass which compresses the
exiting L5 nerve root on this side. It enhances peripherally but not
Disc extrusion or fragment, nerve sheath tumor (neurofibroma or schwannoma)
Left L5/S1 foraminal disc extrusion.
The location, relatively dark T2 signal and lack of central enhancement
as well as the acute presentation make the diagnosis of disc extrusion.
Submitted by Ahmed Hassanin Negila, MD and Jerry Jarvik, MD, UW Neuroradiology
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