Kamishina Hiroaki, Ogawa Hiroya, Katayama Masaaki, Yasuda Jun, Sato Reeko, Tohyama Koujiro
Division of Small Animal Internal Medicine, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan.
J Vet Med Sci. 2010 Mar;72(3):349-52. doi: 10.1292/jvms.09-0375. Epub 2009 Dec 1.
We report a cervical intraspinal cyst in a dog that was initially tetraparetic but spontaneously recovered completely. MRI revealed a well-demarcated intraspinal cyst located dorsally to a degenerated intervertebral disc. The location of the cyst and its signal features on MRI resembled those of discal cysts previously reported in humans. It has been reported in dogs that clinical signs of a intraspinal cyst are similar to those of intervertebral disc herniation and both conditions require surgical intervention. Unexpectedly, our case showed rapid spontaneous recovery and the follow-up MRI revealed complete resolution of the intraspinal cyst and spinal cord compression. Spontaneous recovery of degenerative intraspinal cyst may occur in dogs, similar to rare human cases as reported previously.
我们报告了一例犬颈椎椎管内囊肿，该犬最初出现四肢轻瘫，但随后完全自发恢复。磁共振成像（MRI）显示一个界限清晰的椎管内囊肿，位于退变椎间盘的背侧。该囊肿在MRI上的位置及其信号特征与先前报道的人类椎间盘囊肿相似。在犬类中，据报道椎管内囊肿的临床症状与椎间盘突出相似，这两种情况都需要手术干预。出乎意料的是，我们的病例显示出快速的自发恢复，后续的MRI显示椎管内囊肿和脊髓压迫完全消退。与先前报道的罕见人类病例类似，犬类的退行性椎管内囊肿可能会自发恢复。
