PMC4818289_01
This is a sagittal T1 post-contrast MRI demonstrating enhancement and a well-defined pocket of fluid signal intensity in the posterior aspect of the spinal canal at the mid L4 level.
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fig0005
Magnetic resonance imaging (MRI) of the lumbar spine demonstrated an L4 posterior lumbar epidural abscess in addition to myelitis extending from lumbar nerve roots up to T9 (Fig. 1).