Atlantoaxial instability with hydrocephalus in a dog

  • Jeong, Seong Mok (College of Veterinary Medicine, Chungnam National University) ;
  • Choi, Hojung (College of Veterinary Medicine, Chungnam National University)
  • Accepted : 2006.01.17
  • Published : 2006.03.29


An 8-month-old 3.15 kg female Cocker-spaniel with history of ataxia referred to the Veterianary Medical Teaching Hospital, Chungnam National University. There were no abnormalities in CBC and serum chemical analysis. Agenesis of dens was found on dorsoventral view in cervical radiography. Compressed cervical spinal cord and enlarged cerebral ventricle were observed in magnetic resonance imaging. It was diagnosed as atlantoaxial instability with hydrocephalus. For conservative therapy, neck brace was applied and diuretics and prednisolone were administered. The dog's ataxia became better gradually.


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