Tetens J, Ross M W, Sweeney R W
Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, New Bolton Center, Kennett Square 19348, USA.
J Am Vet Med Assoc. 1995 Dec 15;207(12):1616-7.
A 1-year-old polled Hereford heifer was admitted with a mass of the rostral mandibular area that had been observed 17 days earlier. Cytologic examination of fluid aspirated from the mass revealed normal blood. Radiography revealed an expansile, osteolytic mass involving the rostral portion of the mandible. Mineralization of the soft-tissue component was evident. Rostral mandibulectomy was performed to remove the mass in its entirety. The histologic diagnosis was ameloblastic fibro-odontoma. One year after surgery, cosmetic appearance of the mandible was acceptable, and there was no evidence of tumor regrowth. Radiation therapy, cryotherapy, and thermocautery have been recommended in conjunction with surgical excision to prevent tumor regrowth in the oral cavity. Tumor regrowth was not a factor in long-term prognosis in this cow.
一头1岁的无角海福特小母牛因17天前发现的下颌前部肿块入院。对从肿块中抽出的液体进行细胞学检查，结果显示为正常血液。放射学检查显示下颌骨前部有一个膨胀性、溶骨性肿块，软组织成分有矿化现象。实施了下颌前部切除术以完整切除肿块。组织学诊断为成釉细胞纤维牙瘤。术后一年，下颌的外观尚可接受，且无肿瘤复发迹象。有人建议在手术切除的同时结合放射治疗、冷冻疗法和热烧灼疗法，以防止口腔肿瘤复发。肿瘤复发并非这头奶牛长期预后的影响因素。
