Calving-related intradural avulsion injuries of the thoracolumbar spinal nerve roots in a calf
| Autor: | Kenji Ochiai, Hiroki Kondo, Toru Ogata, Jun Sasaki, Hayate Nishiura, Toshihiro Ichijo, Shino Jou |
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| Rok vydání: | 2020 |
| Předmět: |
Male
Nerve root 040301 veterinary sciences Lameness Animal Dura mater 0403 veterinary science Avulsion Euthanasia Animal Spinal cord compression Birth Injuries medicine Animals General Veterinary Nerve fascicle business.industry 0402 animal and dairy science 04 agricultural and veterinary sciences Anatomy medicine.disease Spinal cord 040201 dairy & animal science medicine.anatomical_structure Peripheral nerve injury Avulsion injury Spinal Nerve Roots Brief Communications business |
| Zdroj: | J Vet Diagn Invest |
| ISSN: | 1943-4936 1040-6387 |
| DOI: | 10.1177/1040638720957640 |
| Popis: | Calving difficulty may lead to traumatic peripheral nerve injury. A male, 8-mo-old, Japanese Black calf with a history of secondary dystocia as a result of fetal gigantism had lameness and gait disturbance. At autopsy, multifocal dural thickening with adhesions to the adjacent spinal cord was observed at T12–13 and L4–5 vertebral levels. Microscopically, numerous traumatic neuroma-like fascicles of nerve twigs were embedded in the dura mater with abundant collagenous connective tissue. By immunohistochemistry, axons and Schwann cells were confirmed in each nerve fascicle. Our observations suggest that avulsion injuries in the preganglionic fibers of the spinal nerve roots, and secondary spinal cord compression, resulted in the development of neurologic signs. |
| Databáze: | OpenAIRE |
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