ROSTRAL MANDIBULECTOMY FOR TREATMENT OF AN AMELOBLASTIC FIBROODONTOMAIN A COW

A 1-year-old polled Hereford heifer was admitted with a mass of the ro stral mandibular area that had been observed 17 days earlier. Cytologi c examination of fluid aspirated From the mass revealed normal blood. Radiography revealed an expansile, osteolytic mass involving the rostr al portion of the mandible. Mineralization of the soft-tissue componen t was evident. Rostral mandibulectomy was performed to remove the mass in its entirety. The histologic diagnosis was ameloblastic fibro-odon toma. One year after surgery, cosmetic appearance of the mandible was acceptable, and there was no evidence of tumor regrowth. Radiation the rapy cryotherapy, and thermocautery have been recommended in conjuncti on with surgical excision to prevent tumor regrowth in the oral cavity . Tumor regrowth was not a factor in long-term prognosis in this cow.