颌骨造釉细胞瘤与含牙囊肿螺旋CT特点比较  

Comparison of features between ameloblastoma and dentigerous cyst in jaw using spiral CT

作　　者：符海杰 雷学斌 张曦 崔光彬 蒋鑫 左林 Fu Haijie;Lei Xuebin;Zhang Xi;Cui Guangbin;Jiang Xin;Zuo Lin(Department of Radiology,Tangdu Hospital of Air Force Medical University,Xian,Shaanxi,710038,China;Department of Radiology,Xinqiao Hospital of Amy Medical University,Chongqing,400037,China)

机构地区：[1]空军军医大学唐都医院放射科,西安710038 [2]陆军军医大学新桥医院放射科

出　　处：《西南国防医药》2020年第2期105-108,共4页Medical Journal of National Defending Forces in Southwest China

基　　金：陕西省卫生计生科研基金项目(2016D010)

摘　　要：目的比较颌骨造釉细胞瘤(AM)与含牙囊肿(DC)的影像学特征。方法回顾性分析39例颌骨AM与29例DC患者的临床资料、组织病理学报告和螺旋CT图像,并对两组的影像学特征进行比较分析。结果AM组上下颌骨比为1∶4.6,DC组为1.9∶1,有显著性差异(P<0.05);AM组病灶最大直径(37.70±12.32)mm,DC组(30.36±11.84)mm(P<0.05);AM组单房型17例,多房型16例,蜂窝型6例,DC组单房型23例,多房型6例,蜂窝型0例,两组内部分隔数有显著差异(P<0.01);AM组含一齿10例,DC组含一齿27例,含两齿2例,两组含齿数有显著差异(P<0.05);AM组颊舌侧骨壁均连续占2.56%,DC组占10.34%,AM组颊舌侧骨壁均不连续占69.23%,DC组占44.83%,AM组骨壁受累较DC组严重(P<0.05)。结论AM多发生于下颌骨,病灶直径大,可出现蜂窝型,少含齿,会出现牙根吸收、骨壁受累重的影像表现,为与DC鉴别提供重要依据。Objective To compare the imaging features between the ameloblastoma(AM)and dentigerous cyst(DC)in the jaw.Methods A retrospective analysis was made for the clinical data,histopathological reports and spiral CT images in 39 patients with AM in the jaw(Group AM)and 29 patients with DC in the jaw(Group DC).The imaging features of the two groups were compared and analyzed.Results The ratio of maxillary to mandible in Group AM and Group DC was 1∶4.6 and 1.9∶1,respectively,showing a significant difference(P<0.05).The maximum diameter of lesions in Group AM and Group DC was(37.70±12.32)mm and(30.36±11.84)mm,respectively(P<0.05).Group AM had 17 cases of unicystic type,16 multilocular type and 6 honeycomb type,and Group DC had 23 cases of unicystic type,6 cases of multilocular type and 0 cases of honeycomb type,showing significant difference in number of internal subtype(P<0.01).There were 10 cases with one tooth in Group AM,27 cases with one tooth and 2 cases with two teeth in Group DC,showing a significant difference(P<0.05).Cases with continuous bone wall at the buccal and lingual sides accounted for 2.56%and 10.34%in Group AM and Group DC,respectively,and cases without continuous bone wall at the buccal and lingual sides accounted for 69.23%and 44.83%in Group AM and Group DC,respectively,indicating greater involvement of bone wall in Group AM than Group DC(P<0.05).Conclusion Ameloblastoma mostly occurs in the mandible,with larger diameter of lesion and a smaller number of teeth.According to the imaging findings,it may have manifestation of honeycomb type,root resorption and involvement of bone wall,which provides an important basis for the identification with dentigerous cyst.

关 键 词：造釉细胞瘤 含牙囊肿 螺旋CT 影像学特征 诊断 

分 类 号：R445.3/739.8[医药卫生—影像医学与核医学]