Mandibular metastasis of a prostatic carcinoma in a dog.

Skeletal metastasis is a common finding in dogs with prostatic carcinoma and most frequently involves the lumbar vertebrae and pelvis. In the present report, we describe the case of a prostatic carcinoma in a 6-year-old Labrador retriever, who developed apparent oral sensitivity and pain within a week of initial diagnosis. Computed tomography of the skull revealed a mixed osteoproductive and osteolytic mass of the condylar process of the left mandible, and cytologic evaluation of the mass was consistent with metastatic prostatic carcinoma. To our knowledge, this is the first published report of mandibular metastasis of a prostatic carcinoma in a dog.