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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 26:39-42, January 2005
© 2005 American Society of Neuroradiology

Case Report
SPINE

MR Imaging Findings in Cauda Equina Gnathostomiasis

Kittisak Sawanyawisuth^a, Somsak Tiamkao^a, Benjaporn Nitinavakarn^b, Paron Dekumyoy^c and Suthipun Jitpimolmard^a

^a Departments of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
^a Departments of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
^a Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand

Address correspondence to Kittisak Sawanyawisuth, Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand

Summary: We report a case of cauda equina syndrome caused by Gnathostoma spinigerum, which was confirmed by an immunoblotting test. MR imaging of the lumbosacral spine showed long, segmented hyperintensity along the cauda equina with irregular enhancement on the postcontrast study. The conus medullaris was slightly enlarged with abnormal enhancement. The patient was treated with corticosteroids, and her clinical condition improved. MR imaging, 9 months after treatment, showed the condition to be completely resolved.

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