This is a Skeletal condition.

Craniomandibular Osteopathy, CMO

What is CMO?

A noncancerous, proliferative bone disease that commonly affects the lower jaw and tympanic bullae, CMO is best known in the West Highland White Terrier, Scottish Terrier, and Cairn Terrier; though it has been observed sporadically in larger dog breeds.

What are the signs & symptoms that develop in affected dogs?

The first signs of this condition are difficulty or discomfort chewing due to thickening and tenderness of the lower jaw. A fever may also be present.

When do signs and symptoms develop?

Signs are first recognized in juveniles.

How do vets diagnose this condition?

Genetic testing and clinical signs can be used to diagnose this condition.

How is this condition treated?

While affected dogs can suffer from pain or malnutrition during the proliferative phase of CMO, the disease does appear to slow and sometimes completely recede once the dog reaches adulthood.

What actions should I take if my dog is affected?

  • Give your dog medications as prescribed by your veterinarian and follow their dietary advice.
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