Spontaneous regression of a cervical intraspinal cyst in a dog.
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.
Kamishina
Hiroaki
H
Division of Small Animal Internal Medicine, Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka, Iwate 020-8550, Japan. kamicna@iwate-u.ac.jp
Ogawa
Hiroya
H
Katayama
Masaaki
M
Yasuda
Jun
J
Sato
Reeko
R
Tohyama
Koujiro
K
D000818:Animals; D003287:Contrast Media; D003560:Cysts / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases / Q000473:pathology; D004285:Dogs; D005260:Female; D007405:Intervertebral Disc Displacement / Q000473:pathology / Q000662:veterinary*; D008279:Magnetic Resonance Imaging / Q000662:veterinary; D010052:Ovariectomy; D012075:Remission, Spontaneous
D003287:Contrast Media