Ohfuji S
Ubushi Substation, Teshio Branch of Hokkaido Rumoi Health Centre, Japan.
Vet Pathol. 1999 Nov;36(6):607-9. doi: 10.1354/vp.36-6-607.
Spinal dysraphism, not associated with vertebral defect or arthrogryposis, was found in a 3-day-old Holstein-Friesian calf that was clinically diagnosed as having encephalopathy. The dysraphic lesion occurred in the sixth (C6) and seventh (C7) segments of the cervical spinal cord. Microscopically, the lesion was characterized by hydromyelia, syringomyelia, anomaly of the ventral median fissure, abnormal running of the myelinated nerve fibers in the white column, and absence of the central canal due to a developmental defect of the ependymal cells.
在一头临床诊断为患有脑病的3日龄荷斯坦-弗里生犊牛中发现了与脊椎缺损或关节挛缩无关的脊柱裂。脊柱裂病变发生在颈脊髓的第六（C6）和第七（C7）节段。显微镜下，病变的特征为积水性脊髓空洞症、脊髓空洞症、腹侧正中裂异常、白质柱中有髓神经纤维走行异常以及由于室管膜细胞发育缺陷导致中央管缺失。
