Calving-related intradural avulsion injuries of the thoracolumbar spinal nerve roots in a calf

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 observ...

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Veröffentlicht in:Journal of veterinary diagnostic investigation 2020-11, Vol.32 (6), p.968-971
Hauptverfasser: Nishiura, Hayate, Jou, Shino, Ogata, Toru, Kondo, Hiroki, Ichijo, Toshihiro, Sasaki, Jun, Ochiai, Kenji
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container_issue 6
container_start_page 968
container_title Journal of veterinary diagnostic investigation
container_volume 32
creator Nishiura, Hayate
Jou, Shino
Ogata, Toru
Kondo, Hiroki
Ichijo, Toshihiro
Sasaki, Jun
Ochiai, Kenji
description 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.
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source MEDLINE; SAGE Complete A-Z List; EZB-FREE-00999 freely available EZB journals; PubMed Central; Alma/SFX Local Collection
subjects Animals
Birth Injuries - complications
Birth Injuries - pathology
Birth Injuries - veterinary
Brief Communications
Euthanasia, Animal
Lameness, Animal - etiology
Male
Spinal Nerve Roots - injuries
Spinal Nerve Roots - pathology
title Calving-related intradural avulsion injuries of the thoracolumbar spinal nerve roots in a calf
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