Combination of transverse myelitis and arachnoiditis in cauda equina syndrome of long-standing ankylosing spondylitis: MRI features and its role in clinical management |
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| Authors: | Howard Haw-Chang Lan Clayton Chi-Chang Chen Joung-Liang Lan Chia-Wei Hsieh |
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| Affiliation: | (1) Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China;(2) Division of Allergy, Immunology and Rheumatology, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China;(3) Central Taiwan University of Science and Technology, Taichung, Taiwan, Republic of China;(4) Hungkuang University, Taichung, Taiwan, Republic of China;(5) National Yang Ming University, Taipei, Taiwan, Republic of China;(6) National Chung Hsing University, Taichung, Taiwan, Republic of China;(7) 160 Taichung-Kang Road, Sec. 3, Taichung, 407, Taiwan, Republic of China |
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| Abstract: | ![]()
The cauda equina syndrome (CES) is a rare neurological complication of ankylosing spondylitis (AS). Imaging diagnosis of CES in long-standing AS patients (CES-AS) using myelography, computed tomography (CT), and magnetic resonance imaging (MRI) were reported in the literature. They, however, demonstrate only the chronic abnormalities of CES-AS, i.e., dural ectasia, dorsal dural diverticula, and selective bone erosion at the posterior elements of the vertebrae. To our knowledge, imaging features of acute intradural inflammation in CES-AS were not described. We report a patient of CES-AS in whom MRI disclosed acute transverse myelitis and arachnoiditis along the lower spinal cord, and discuss the pathogenesis of CES-AS and the role of MRI in clinical management. |
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| Keywords: | Ankylosing spondylitis Arachnoiditis Cauda equina syndrome Dural diverticula Magnetic resonance imaging Transverse myelitis |
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