Miller F L, Cawley A J, Choquette L P, Broughton E
J Wildl Dis. 1975 Oct;11(4):465-70. doi: 10.7589/0090-3558-11.4.465.
Dental anomalies were observed in 43 of 1,226 barren-ground caribou (Rangifer tarandus groenlandicus) taken between 1966 and 1968. In five of these 43 animals, the mandibles had deformities which radiography showed to be the result of dental abscesses in four cases and probably of a trauma in the other. The absence of actinomycotic lesions of the jaw bones of these 1,226 animals, and of more than 500 examined previously, indicates that "lumpy jaw" is rare in barren-ground caribou. The authors suggest the use of radiography to determine the nature of bone growth on skeletal remains, in the absence of soft tissues for examination for Actinomyces, either microscopically or by cultural methods.
在1966年至1968年捕获的1226头北极驯鹿（Rangifer tarandus groenlandicus）中，有43头观察到牙齿异常。在这43头动物中，有5头的下颌骨有畸形，X光检查显示，其中4例是牙脓肿的结果，另一例可能是外伤所致。这1226头动物以及之前检查的500多头动物的颌骨均未发现放线菌病变，这表明“肿块颌”在北极驯鹿中很少见。作者建议，在没有软组织可供显微镜检查或培养法检测放线菌的情况下，使用X光检查来确定骨骼遗骸上骨生长的性质。
