Faculty of Veterinary Medicine, Okayama University of Science, Imabari, Ehime, Japan.
Vet Med Sci. 2023 Nov;9(6):2399-2403. doi: 10.1002/vms3.1283. Epub 2023 Sep 23.
A 5-year-old, castrated, male domestic short-haired cat presented with neurological deficits in the pelvic limbs, back pain and dysuria. Magnetic resonance imaging showed a mass lesion caudal to the L4 vertebrae. In addition, suspected haemorrhage was observed at the cranial aspect of the mass. There was no evidence to support the presence of extravertebral intrusion or vertebral body, osteolysis. Dorsal laminectomy and durotomy were performed to debulk the intraspinal mass. Histopathological and immunohistochemical assessment revealed a primitive neuroectodermal tumour (PNET). To our knowledge, this is the first report to describe the clinical and pathological features and imaging diagnosis of intraspinal PNET without extraspinal invasion in a cat.
一只 5 岁已去势的雄性家短毛猫出现骨盆肢神经功能缺损、背痛和排尿困难。磁共振成像显示 L4 椎体以下有一个肿块病变。此外，在肿块的颅面观察到疑似出血。没有证据支持椎体外侵入或溶骨性骨质破坏的存在。进行了背侧椎板切除术和硬脑膜切开术以缩小椎管内肿块。组织病理学和免疫组织化学评估显示为原始神经外胚层肿瘤（PNET）。据我们所知，这是第一份描述无脊柱外侵犯的猫脊柱内 PNET 的临床和病理特征及影像诊断的报告。
