CRANIOMANDIBULAR OSTEOPATHY IN 2 PYRENEAN MOUNTAIN DOGS

Craniomandibular osteopathy was diagnosed in two Pyrenean mountain dog s with a history of mandibular swelling, pain, fever and, in dog 1, la meness. Radiographs demonstrated extensive, active new bone formation on the ventral aspect of the mandibular bodies of both dogs. Dog 2 res ponded well to treatment but dog 1 was euthanased owing to severe pain , dysphagia and unsuccessful treatment. The mandibles were examined by means of back-scattered scanning electron microscopy and a well arran ged mineralised trabecular network of chondroid tissue and woven bone was observed. The mandibular cortical bone under the areas of perioste al proliferation was also affected, showing a looseness of the charact eristic compact appearance of lamellar bone, This is the first report of craniomandibular osteopathy in this breed.