颌骨动脉瘤样骨囊肿的临床及影像学分析  

Aneurysmal bone cyst of the jaw bones:Clinical presentation and imaging findings

作　　者：汪湧[1] 徐颖[2] 杨驰[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院.口腔医学院口腔颌面外科上海市口腔医学研究所,上海200011 [2]上海交通大学医学院附属瑞金医院口腔科,上海200010

出　　处：《中国口腔颌面外科杂志》2008年第3期217-220,共4页China Journal of Oral and Maxillofacial Surgery

基　　金：上海市重点(优势)学科建设项目(Y0203)~~

摘　　要：目的:探讨颌骨动脉瘤样骨囊肿的影像学特征和临床表现,以提高对其诊断和鉴别诊断的能力。方法:回顾分析27例颌骨动脉瘤样骨囊肿患者的临床表现和影像学资料。结果:27例患者中,男10例,女17例;年龄0.6～62岁(平均年龄23.4岁);上颌骨7例,下颌骨20例。7例为继发性,20例为原发病变。X线平片显示,病灶长轴沿下颌骨长轴走向13例(76%);骨质破坏呈膨胀性,病变骨与正常骨之间边界欠清,无明显的骨质反应线,骨皮质膨胀变薄或断裂,无骨膜反应;13例病灶内部有分房。CT为边界清楚的囊实性软组织肿块,内含切迹,7例骨性房隔,3例出现液-液平面。MRI上T1WI为低、等信号,T2WI均匀的高信号。27例病变中,15例(56%)为偏心型,12例(44%)为中心型,1例为骨旁型。结论:影像学检查有助于提高对本病的认识和明确诊断。PURPOSE： To investigate the imaging feature and clinical presentation of aneurysmal bone cyst（ABC） of the jaw bones. METHODS： The records including diagnostic radiograph images from 27 patients with ABC were retrospectively analyzed. RESULTS： The age of the 27 patients ranged from 0.6 to 62 years （means,23.4 years）. The numbers of males and females were 10 and 17. Of 27 patients,7 were secondary to another bone lesion. Twenty lesions were located in the mandible, 7 were located in the maxilla. On conventional radiographs, the lesion was presented an expansile osteolytic lesion. In the mandible, its longest dimension was along with the long axis of the host bone. The zone of transition between the lesion and normal bone was indistinct and not sclerotic. The cortical bone was thin and /or fractured and the periosteal reaction was not noted. Muhilocular antrums transversed by intralesional septa were presented in 13 cases. CT imaging demonstrated multiple internal separations （n=7） and fluid-fluid level（n=3）. On MRI, the lesion was displayed as large bony destruction area,with homogeneous hypointensity on T1-weighted images, homogenous hyperintensity on T2-weighted imagings. Bone expansion in ABC was eccentric in 15 cases, central in 3 cases and parosteal in one case. CONCLUSION： A comprehensive analysis of imaging and clinical presentation can improve diagnostic accuracy of ABC. Supported by Shanghai Leading Academic Discipline Project （Grant No. Y0203）.

关 键 词：动脉瘤样骨囊肿 颌骨 影像学表现 

分 类 号：R782[医药卫生—口腔医学] R445[医药卫生—临床医学]