颌骨牙源性囊性病变的影像表现  

Imaging findings of odontogenic cystic lesions of the jaw

作　　者：梁昌富[1] 

机构地区：[1]海南省人民医院放射科,海南海口570311

出　　处：《海南医学》2012年第10期84-86,共3页Hainan Medical Journal

摘　　要：目的分析颌骨囊性病变的影像表现,提高对颌骨囊性病变的诊断水平。方法回顾性分析经手术和病理证实的颌骨牙源性囊性病变52例(共55个病灶)的影像资料,观察病变的形态、房室特征及其与牙齿的关系。结果病变包括成釉细胞瘤22例22个病灶,牙源性角化囊性瘤9例9个病灶,含牙囊肿10例11个病灶,根尖囊肿11例13个病灶。成釉细胞瘤呈多房或单房分叶状,伴邻近骨质及牙齿浸润;角化囊性瘤呈单房轻分叶,有轻微侵蚀性;含牙囊肿及根尖囊肿常为类圆形,无侵蚀性,根尖囊肿均有病原牙。结论 X线及CT检查可根据病变的形态特征及周围结构的改变对大部分病变作出诊断,CT优于X线平片,病灶膨胀程度对诊断及鉴别诊断有意义。Objective To improve the diagnostic accuracy of odontogenic cystic lesions by analyzing their imaging findings.Methods Imaging findings of 55 odontogenic cystic jaw lesions in 52 patients were retrospectively studied.The configuration and structure of the lesions were observed.And the relationship between the lesions and teeth were analyzed.Results The lesions included 22 ameloblastomas（22 cases）,9 keratocystic odontogenic tumors（9 cases）,11 dentigerous cysts（10 cases） and 13 radicular cysts（11 cases）.Ameloblastomas were usually multilocular or unilocular and lobulated with adjacent bone and teeth erosion.Keratocystic odontogenic tumours displayed unilocular and mild lobulated in shape,their aggressive nature was slight.Dentigerous cysts and radicular cysts were unilocular and round and non-aggressive,radicular cysts had pathogenic teeth.Conclusion In X-ray and CT scan,the morphological features and the change of the surrounding structures are very helpful for the diagnosis of most lesions.CT scan is superior to x-ray.The degree of expansion of the lesion is of great importance to the diagnosis and differential diagnosis.

关 键 词：颌骨 囊性病变 体层摄影 X线计算机 

分 类 号：R782.2[医药卫生—口腔医学]