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Radiographic and computed tomographic features of a subarachnoid diverticulum causing compressive cervical myelopathy in a yearling Warmblood horse

(2024) EQUINE VETERINARY EDUCATION. 36(5). p.e121-e128
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Abstract
A 1-year-old Belgian Warmblood with a previously known history of successfully repaired temporal and parietal bone fractures sustained at 14 days of age was presented for investigation of a recent, acute and progressive quadrilateral ataxia. The owner reported a lack of coordination and difficulty getting up, with progressing paresis 2 weeks prior to the presentation. Neurological examination revealed pronounced hypermetria/dysmetria in the walk and trot in all four limbs. No evidence of cranial nerve deficits was observed. The horse was in good general condition with unremarkable clinical parameters. Survey lateral radiographs of the cervical spine revealed significant signs of cervical vertebral malformation, including hypertrophy of the articular process joints, indicating narrowing of the spinal canal with suspected cervical stenotic myelopathy. Cervical computed tomographic (CT) myelography revealed the presence of multiple dorsal subarachnoid diverticula causing significant spinal cord compression at multiple locations, with osteoarthrosis of the cervical articular process joints. Due to a poor prognosis and guarded surgical outcome, the owner declined further treatment, and the horse was discharged with conservative corticosteroid treatment. The patient was euthanised shortly after the initial presentation due to progressive worsening signs. To the authors' knowledge, CT myelography findings in a yearling with cervical subarachnoid multiple diverticula have not been previously published. This case illustrates the usefulness of advanced imaging techniques, such as CT myelography, in combination with static and dynamic radiography to provide a better and more accurate diagnosis.
Keywords
horse, ataxia, cervical stenosis, stenotic myelopathy, subarachnoid diverticulum, SPINAL ARACHNOID CYSTS, VERTEBRAL MALFORMATION, CORD, DOGS, DIAGNOSIS, ABNORMALITIES, SIGNALMENT, ATAXIA

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MLA
Olszewska, Agnieszka, et al. “Radiographic and Computed Tomographic Features of a Subarachnoid Diverticulum Causing Compressive Cervical Myelopathy in a Yearling Warmblood Horse.” EQUINE VETERINARY EDUCATION, vol. 36, no. 5, Wiley, 2024, pp. e121–28, doi:10.1111/eve.13896.
APA
Olszewska, A., Raes, E., Lefère, L., & Vanderperren, K. (2024). Radiographic and computed tomographic features of a subarachnoid diverticulum causing compressive cervical myelopathy in a yearling Warmblood horse. EQUINE VETERINARY EDUCATION, 36(5), e121–e128. https://doi.org/10.1111/eve.13896
Chicago author-date
Olszewska, Agnieszka, Els Raes, Laurence Lefère, and Katrien Vanderperren. 2024. “Radiographic and Computed Tomographic Features of a Subarachnoid Diverticulum Causing Compressive Cervical Myelopathy in a Yearling Warmblood Horse.” EQUINE VETERINARY EDUCATION 36 (5): e121–28. https://doi.org/10.1111/eve.13896.
Chicago author-date (all authors)
Olszewska, Agnieszka, Els Raes, Laurence Lefère, and Katrien Vanderperren. 2024. “Radiographic and Computed Tomographic Features of a Subarachnoid Diverticulum Causing Compressive Cervical Myelopathy in a Yearling Warmblood Horse.” EQUINE VETERINARY EDUCATION 36 (5): e121–e128. doi:10.1111/eve.13896.
Vancouver
1.
Olszewska A, Raes E, Lefère L, Vanderperren K. Radiographic and computed tomographic features of a subarachnoid diverticulum causing compressive cervical myelopathy in a yearling Warmblood horse. EQUINE VETERINARY EDUCATION. 2024;36(5):e121–8.
IEEE
[1]
A. Olszewska, E. Raes, L. Lefère, and K. Vanderperren, “Radiographic and computed tomographic features of a subarachnoid diverticulum causing compressive cervical myelopathy in a yearling Warmblood horse,” EQUINE VETERINARY EDUCATION, vol. 36, no. 5, pp. e121–e128, 2024.
@article{01J1CSQ69KVDE73ZQC7P4C3GJW,
  abstract     = {{A 1-year-old Belgian Warmblood with a previously known history of successfully repaired temporal and parietal bone fractures sustained at 14 days of age was presented for investigation of a recent, acute and progressive quadrilateral ataxia. The owner reported a lack of coordination and difficulty getting up, with progressing paresis 2 weeks prior to the presentation. Neurological examination revealed pronounced hypermetria/dysmetria in the walk and trot in all four limbs. No evidence of cranial nerve deficits was observed. The horse was in good general condition with unremarkable clinical parameters. Survey lateral radiographs of the cervical spine revealed significant signs of cervical vertebral malformation, including hypertrophy of the articular process joints, indicating narrowing of the spinal canal with suspected cervical stenotic myelopathy. Cervical computed tomographic (CT) myelography revealed the presence of multiple dorsal subarachnoid diverticula causing significant spinal cord compression at multiple locations, with osteoarthrosis of the cervical articular process joints. Due to a poor prognosis and guarded surgical outcome, the owner declined further treatment, and the horse was discharged with conservative corticosteroid treatment. The patient was euthanised shortly after the initial presentation due to progressive worsening signs. To the authors' knowledge, CT myelography findings in a yearling with cervical subarachnoid multiple diverticula have not been previously published. This case illustrates the usefulness of advanced imaging techniques, such as CT myelography, in combination with static and dynamic radiography to provide a better and more accurate diagnosis.}},
  author       = {{Olszewska, Agnieszka and Raes, Els and Lefère, Laurence and Vanderperren, Katrien}},
  issn         = {{0957-7734}},
  journal      = {{EQUINE VETERINARY EDUCATION}},
  keywords     = {{horse,ataxia,cervical stenosis,stenotic myelopathy,subarachnoid diverticulum,SPINAL ARACHNOID CYSTS,VERTEBRAL MALFORMATION,CORD,DOGS,DIAGNOSIS,ABNORMALITIES,SIGNALMENT,ATAXIA}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{e121--e128}},
  publisher    = {{Wiley}},
  title        = {{Radiographic and computed tomographic features of a subarachnoid diverticulum causing compressive cervical myelopathy in a yearling Warmblood horse}},
  url          = {{http://doi.org/10.1111/eve.13896}},
  volume       = {{36}},
  year         = {{2024}},
}

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