Craniomandibular Osteopathy
Craniomandibular osteopathy (CMO) is a developmental bone disease affecting the skull and jaw of young dogs, causing painful swelling and difficulty eating.
Detailed Description
CMO is a hereditary disorder characterized by abnormal bone growth in the mandible and skull, typically manifesting between 3 and 8 months of age. The condition is self-limiting, often regressing by 12 months, but can cause significant discomfort and jaw dysfunction during its course. It is most commonly seen in certain terrier breeds and is inherited in an autosomal recessive manner.
Common Symptoms
- Swelling of jaw or skull
- Pain when opening mouth
- Drooling
- Difficulty eating
- Fever
Management Options
- Supportive care with pain management
- Anti-inflammatory medications
- Feeding soft food
Frequently Asked Questions
Is CMO fatal?
No, it is rarely fatal and most dogs recover with supportive care.
Can CMO recur in adulthood?
No, it is a juvenile disease and does not recur after maturity.
Is there a genetic test for CMO?
Not currently; diagnosis is clinical and radiographic.
Can affected dogs be bred?
No, breeding is discouraged to prevent passing on the gene.
Condition Details
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Typical Age of Onset
3–8 months
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Testing Available
No
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Diagnosing Methods
Physical examination; Radiographs showing irregular bone proliferation
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Preventative Measures
Avoid breeding affected dogs or known carriers
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Related Conditions
Mandibular fractures, Osteomyelitis