下颌骨牙源性角化囊肿X线影像分析

目的：提高对下颌骨牙源性角化囊肿X线征象的认识。方法：回顾性分析经病理证实的60例下颌骨牙源性角化囊肿的X线资料。结果：下颌骨牙源性角化囊肿X线征象有：①下颌骨磨牙升好发区，17例（28．3％）；②牙根斜面状吸收多见，93个（71％）；③沿长轴生长40例（66．7％）；④X线分为4型：单房型18例（30％），多房型30例（50％），多发型8例（13．3％）及综合征型4例（6．7％）。结论：牙源性角化囊囊的牙根斜面状吸收和沿长轴生长是特征性的。

An analysis of the X-ray imaging of odontogenic keratocyst in the mandible

Objective:To improve the understanding of X-ray features of the odontogenic keratocyst of mandibula. Methods: The X-ray findings of 60 pathologically proven cases with odontogenic keratocyst of mandibula were retrospectively analyzed. Results:The X-ray findings were as follows:(1)The most commom sites were in the molar-ramus region of mandibula (n=17,28. 3%) ;(2)Resorption of bevel of roots was commom(n=93. 71 %) ;(3)Type of growth was along the long axis of the mandibula (n = 40,66. 7%);(4)The X-ray findings could dividied into 4 types:monolocular type (n=18. 30%), multilocular type (n = 30. 50%) .multiple type (n=8,13. 3%) ,and syndrome type (n=8,6. 7%). Conclusion:Resorption of bevel of roots,and growth along the long axis of the mandibula are characteristics of odontogenic keratocyst in the mandible.