散养南方虎猫的节段性腰椎脊髓增生症

L. Tondo, Asheley H.B. Pereira, Patrícia M. Fortes, T. T. N. Watanabe, Bruno H. Saranholi, Patrícia D. Freitas, M. D’arc, André F. A. Santos, D. Balthazar, Daniel G. Ubiali
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摘要

我们报告了一例自由放养五个月的野猫,它自出生以来就因腰椎脊髓节段性再生障碍而双侧后肢瘫痪。通过基因测序确定了南方虎猫(Leopardus guttulus)的物种确认。这只原产于巴西的南方虎猫在住院初期双侧骨盆肢体出现自噬现象,随后右侧胫骨骨折,骨头外露。出于动物福利的考虑,我们对其实施了安乐死,并进行了尸检。从大体上看,在第三和第五腰椎之间有一条长 8.5 厘米的脊髓节段性中断,脊髓组织缺失,相关硬脑膜塌陷。显微镜下,L3 至 L5 段脊髓的代表性切片仅有......不规则的灰质痕迹附着在脑膜上(腰椎脊髓再生障碍)。在 L6 段区域,中央管背侧发现了局部广泛、囊状和轮廓清晰的管状空洞,取代并压迫了邻近的神经组织(鞘膜积液)。元基因组学检查未发现任何导致脊髓畸形的病毒。这似乎是首次在野生猫科动物中发现节段性脊髓再生障碍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Segmental lumbar spinal cord aplasia in a free-ranging southern tiger cat (Leopardus guttulus)
We report a case of a free-ranging five-month wildcat with bilateral hind limbs paralysis since birth due to a segmental lumbar spinal cord aplasia. The species confirmation of the southern tiger cat ( Leopardus guttulus ) was determined by genetic sequencing. This southern tiger cat native to Brazil had autophagy in both pelvic limbs during the initial phase of hospitalization, followed by a right tibial fracture with bone exposition. Euthanasia was chosen due to animal welfare and submitted for postmortem examination. Grossly, there was an 8.5cm in-length segmental interruption of the spinal cord between the third and fifth lumbar vertebrae, with a lack of spinal cord tissue and collapsed associated dura mater. Microscopically, the representative sections of the L3 to L5 spinal cord had only .an irregular trace of gray matter adhered to the meninges (lumbar spinal cord aplasia) In the region of L6, a focally extensive, cystic, and well-defined tubular cavitation was noted dorsally to the central canal, replacing and compressing the adjacent nervous tissue (syringomyelia). Metagenomics examination did not detect any virus responsible for the presented spinal cord malformations. This seems to be the first description of segmental spinal cord aplasia reported in a wild feline.
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