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FIG 2. Radiculomyelitis causing bilateral AFP and urinary retention.
A, Unenhanced axial T1-weighted image (752/15) shows hypointense lesions (arrowheads) in the anterior horn cells of spinal cord bilaterally at T11 level.
B, Contrast-enhanced T1-weighted image at the same level as in A shows predominant enhancement of the ventral roots (arrowheads). The anterior horn cell lesions do not enhance.
C, Contrast-enhanced T1-weighted image at the conus level clearly shows the predominant ventral root enhancement. The slightly hyperintense dot at the left dorsal root region (arrowhead) is probably due to enhancement of the radicular vein.
D, The anterior horn cell lesions are hyperintense and more conspicuous on gradient-echo T2-weighted image (808/15/20) as compared with T1-weighted image (A).
E, Sagittal fast spin-echo T2-weighted image (2300/103/2) shows the extent of the anterior horn cell lesions (arrowheads) from midthoracic to conus levels.
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