22例牙源性腺样瘤的X线三维影像学特点分析  

Three-dimensional radiographic characteristics of 22 Adenomatoid odontogenic tumors

作　　者：屈留洋 凌晓彤 郑丹妮 杨静 闫雪冰[2] 柳登高[3] 高岩[4] QU Liuyang;LING Xiaotong;ZHENG Danni;YANG Jing;YAN Xuebing;LIU Denggao;GAO Yan(Department of Oral and Maxillofacial Radiology,Peking University School and Hospital of Stomatology,Beijing 100081)

机构地区：[1]北京大学口腔医学院·口腔医院医学影像科,北京100081 [2]北京大学口腔医学院·口腔医院第一门诊部特诊科,北京100081 [3]北京大学口腔医学院·口腔医院国家口腔医学中心,国家口腔疾病临床医学研究中心,口腔生物材料和数字诊疗装备国家工程研究中心,口腔数字医学北京市重点实验室,国家卫生健康委员会口腔医学计算机应用工程技术研究中心,国家药品监督管理局口腔生物材料重点实验室,北京100081 [4]北京大学口腔医学院·口腔医院口腔病理科,北京100081

出　　处：《现代口腔医学杂志》2024年第4期248-252,共5页Journal of Modern Stomatology

摘　　要：目的利用螺旋CT和锥形束CT分析22例牙源性腺样瘤(adenomatoid odontogenic tumor,AOT)的影像学特点,以期为临床诊断和鉴别诊断提供参考。方法回顾性收集2010年1月~2022年10月于北京大学口腔医院就诊的有完整临床资料、病理诊断及螺旋CT或锥形束CT影像的AOT患者22例,结合临床与病理表现,分析其影像学特点,包括位置、大小、膨隆情况及钙化情况等。根据病变内钙化特点,将病变分为:无钙化型(无明显钙化)、偏侧型(钙化位于病变一侧的边缘)、星环型(钙化环绕病变中心呈圆形或环形);散发型(钙化在病变内零星分布)。结果共纳入22例患者,男性9例,女性13例,年龄10~34岁。22例AOT均为骨内型单房病变,其中21例(95.5%)为类圆形,11例(50.0%)位于下颌骨前部。19例(86.4%)病变内可见形态及数目不等的钙化物,包括偏侧型3例,星环型12及散发型4例;余3例(13.6%)无钙化。另外,18例(81.8%)病变唇/颊侧骨皮质膨隆,12例(54.5%)舌/腭侧膨隆;6例(27.3%)存在骨皮质不连续;12例(54.5%)含阻生牙,其中8例(66.7%,8/12)阻生牙为尖牙;仅4例(18.2%)有牙根吸收。结论本组病例中AOT以年轻女性多见,好发于颌骨前部,病变膨隆明显,近90%的病变内可见钙化物。根据瘤内钙化特点可分为无钙化型、偏侧型、星环型及散发型。Objective To analyze the there-dimensional radiographic characteristics of adenomatoid odontogenic tumors(AOT)using spiral computed tomography(SCT)and cone-beam CT(CBCT).Methods Clinical records,histopathological reports,and SCT or CBCT images of 22 patients were retrospectively acquired,and radiographic features,including site,shape,size,expansion,intralesional calcification,and relationship with surrounding tissues,were analyzed.Radiographically,the lesions were divided into four types:I(non-calcification type):absence of calcification;Ⅱ(partial-circumferential type):multiple calcifications at one side of the tumor;Ⅲ(circumferential type):multiple calcifications around the center of the tumor;Ⅳ(sporadic type):sporadic calcifications in the tumor.ResultsTwenty-two patients involved 9 males and 13 females(age:10~34 years).Among them,21 lesions(95.5%)were round-like in shape,and 11(50%)were located in the anterior mandible.According to the calcification map,they included 3 typeⅠ,4 typeⅡ,12 typeⅢand 3 typeⅣlesions.Labial/buccal cortex expansion occurred in 18 cases(81.8%),and palatal cortex expansion was seen in 12 cases(54.5%).Moreover,cortex discontinuity occurred in 6 lesions(27.3%).Impacted tooth was found in 12 lesions(54.5%),including canines in 8 cases(66.7%,8/12).Besides,root resorption was present in 4 lesions(18.2%).ConclusionAOT tended to occur in young females and had a predilection for the anterior jaw bone.Most lesions were round in shape.Calcifications were present in approximately 90%of the cases.According to the calcification map,they can be divided into non-calcification type,semi-circumferential type,circumferential type,and sporadic type.

关 键 词：牙源性腺样瘤 影像诊断 螺旋CT 锥形束CT 

分 类 号：R739.8[医药卫生—肿瘤]