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Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat

Nerve root enlargement with increased contrast uptake has been reported in dogs and humans secondary to nerve root compression. In cats, nerve root enlargement and contrast uptake only have been reported in association with inflammatory and neoplastic diseases, but not as a sequela to nerve root com...

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Autores principales: Herzig, Robert, Wang‐Leandro, Adriano, Steffen, Frank, Matiasek, Kaspar, Beckmann, Katrin M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8163120/
https://www.ncbi.nlm.nih.gov/pubmed/33826180
http://dx.doi.org/10.1111/jvim.16112
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author Herzig, Robert
Wang‐Leandro, Adriano
Steffen, Frank
Matiasek, Kaspar
Beckmann, Katrin M.
author_facet Herzig, Robert
Wang‐Leandro, Adriano
Steffen, Frank
Matiasek, Kaspar
Beckmann, Katrin M.
author_sort Herzig, Robert
collection PubMed
description Nerve root enlargement with increased contrast uptake has been reported in dogs and humans secondary to nerve root compression. In cats, nerve root enlargement and contrast uptake only have been reported in association with inflammatory and neoplastic diseases, but not as a sequela to nerve root compression. An 8‐year‐old oriental short hair cat was presented with acute neurologic deficits consistent with left‐sided sciatic nerve deficit and possible L6‐S1 myelopathy. Magnetic resonance imaging (MRI) was performed and identified compression of the cauda equina and L7 nerve root associated with intervertebral disc herniation (IVDH) at L6‐L7 as well as widespread sciatic nerve enlargement with moderate rim enhancement. A hemilaminectomy was performed to evacuate herniated disc material. The nerve root was biopsied and submitted for histological evaluation. Interstitial nerve edema was diagnosed. Follow‐up MRI 3 months postoperatively showed complete remission of the changes. Nerve root thickening together with contrast enhancement may represent nerve edema in cats secondary to IVDH.
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spelling pubmed-81631202021-06-03 Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat Herzig, Robert Wang‐Leandro, Adriano Steffen, Frank Matiasek, Kaspar Beckmann, Katrin M. J Vet Intern Med SMALL ANIMAL Nerve root enlargement with increased contrast uptake has been reported in dogs and humans secondary to nerve root compression. In cats, nerve root enlargement and contrast uptake only have been reported in association with inflammatory and neoplastic diseases, but not as a sequela to nerve root compression. An 8‐year‐old oriental short hair cat was presented with acute neurologic deficits consistent with left‐sided sciatic nerve deficit and possible L6‐S1 myelopathy. Magnetic resonance imaging (MRI) was performed and identified compression of the cauda equina and L7 nerve root associated with intervertebral disc herniation (IVDH) at L6‐L7 as well as widespread sciatic nerve enlargement with moderate rim enhancement. A hemilaminectomy was performed to evacuate herniated disc material. The nerve root was biopsied and submitted for histological evaluation. Interstitial nerve edema was diagnosed. Follow‐up MRI 3 months postoperatively showed complete remission of the changes. Nerve root thickening together with contrast enhancement may represent nerve edema in cats secondary to IVDH. John Wiley & Sons, Inc. 2021-04-07 2021 /pmc/articles/PMC8163120/ /pubmed/33826180 http://dx.doi.org/10.1111/jvim.16112 Text en © 2021 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals LLC. on behalf of the American College of Veterinary Internal Medicine. https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle SMALL ANIMAL
Herzig, Robert
Wang‐Leandro, Adriano
Steffen, Frank
Matiasek, Kaspar
Beckmann, Katrin M.
Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title_full Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title_fullStr Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title_full_unstemmed Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title_short Imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
title_sort imaging and histopathologic features of reversible nerve root and peripheral nerve edema secondary to disc herniation in a cat
topic SMALL ANIMAL
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8163120/
https://www.ncbi.nlm.nih.gov/pubmed/33826180
http://dx.doi.org/10.1111/jvim.16112
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