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AJNR - American Journal of Neuroradiology

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West Nile Virus: A Case Report with Flaccid Paralysis and Cervical Spinal Cord

MR Imaging Findings

Greg Kraushaar^a, Rajesh Patel^a and Grant W. Stoneham^a

^a Department of Medical Imaging, University of Saskatchewan, Saskatoon, Saskatchewan, Canada

View larger version (98K): [in a new window]   FIG 1. Axial T2-weighted MR images of the cervical spinal cord. The figures demonstrate bilateral hyperintense signal in the anterior horns. There is a right-side predominance of abnormal signal intensity most apparent in panels A and C. B depicts symmetrical hyperintense signal in the anterior horns.

View larger version (102K): [in a new window]   FIG 2. Sagittal T2-weighted MR images with hyperintense signal in the anterior horns. A, Midline sagittal section through spinal cord. B, slightly right of midline sagittal section. C, sagittal section through anterior horn on right side.

View larger version (130K): [in a new window]   FIG 3. Axial T2-weighted MR image taken 6 months following infection. The hyperintense signal noted previously has resolved.