腮腺淋巴上皮囊肿的超声表现  

Ultrasonographic Characteristics of Lymphoepithelial Cyst in Parotid Gland

作　　者：罗伟东 贾浥苹 龚健 赵琴 曹均强 杨先 LUO Weidong;JIA Yiping;GONG Jian;ZHAO Qin;CAO Junqiang;YANG Xian(Department of Ultrasound,West China School of Public Health and West China Fourth Hospital,Sichuan University,Chengdu 610000,China)

机构地区：[1]四川大学华西公共卫生学院/华西第四医院超声医学科,四川成都610000

出　　处：《中国医学影像学杂志》2021年第8期784-787,共4页Chinese Journal of Medical Imaging

基　　金：四川省科技厅社发领域重点研发项目(19ZDYF1453)。

摘　　要：目的分析腮腺内淋巴上皮囊肿的超声声像图特点。资料与方法回顾性分析经病理证实的22例腮腺淋巴上皮囊肿患者的超声表现,观察腮腺病灶的部位、数量、大小、形态、边界和内部回声。结果灰阶超声表现:22例均为单侧发病,其中1例(4.55%)为多发,共3个病灶;21例(95.45%)为单发。左侧腮腺发病13例(59.09%),右侧腮腺9例(40.91%)。病灶位于腮腺浅叶17个(70.83%),位于腮腺深叶7个(29.17%);病灶最大径12~44 mm,平均(28.9±9.6)mm;所有病灶边界清楚,其中形态规则20例(90.91%),病例中内部呈透声清晰的无回声6例(27.27%),内部回声呈粗大颗粒状和云雾状弱回声混杂形成"雪花征"14例(63.63%),内部可见团状弱回声2例(9.10%),22个病例中出现分隔6个(27.27%),伴发腮腺淋巴上皮病变1例(4.55%)。病灶包膜多普勒评分:0级12例(54.55%),1级9例(40.91%),2级1例(4.55%)。结论腮腺单侧发生的囊性占位,内部回声呈"雪花征"是腮腺淋巴上皮囊肿较有价值的超声声像图特征,掌握其声像图特征有助于提高腮腺淋巴上皮囊肿的诊断水平。Purpose To analyze the ultrasonographic characteristics of lymphoepithelial cyst(LEC)in parotid gland.Materials and Methods Twenty-two patients confirmed as LEC by surgery were retrospectively selected,and the ultrasonographic features of LEC were further analyzed,including location,number,size,shape,boundary and internal echo of parotid gland lesions.Results Gray-scale ultrasound manifestations showed that all lesions of 22 cases were located in the unilateral parotid gland,three lesions found in one patient(4.55%),and lesions were usually single in 21 cases(95.45%).There were 13 cases(59.09%)in the left parotid gland and 9 cases(40.91%)in the right parotid glands.17 lesions(70.83%)were located in the shallow parotid gland,and 7 lesions(29.17%)were located in the deep parotid gland.The diameter range of lesions was 12-44 mm,and the mean maximum diameter was(28.9±9.6)mm.The boundaries of lesions were all clear,including 20 lesions(90.91%)with regular morphology.There were 6 lesions(27.27%)with fluid echoless in the lesion,14 lesions(63.63%)with coarse granular and nebular echoes showing the"snowflake sign"in the internal echoes,2 lesions(9.10%)with cluster weak echoes.Of 22 cases,6 cases(27.27%)were showed separation lesions and 1 case(4.55%)was associated with parotid lymphoepithelial disease.There were 12 cases(54.55%)in grade 0,9 cases(40.91%)in grade 1,1 case(4.55%)in grade 2 via CDFI.Conclusion Both features including cystic mass located in the unilateral parotid gland and"snowflake sign"are more valuable sonographic characteristics in patients with LEC in parotid gland,improving parotid LEC diagnosis level.

关 键 词：腮腺肿瘤 淋巴上皮囊肿 超声检查 多普勒 彩色 病理学 外科 

分 类 号：R445.1[医药卫生—影像医学与核医学] R782[医药卫生—诊断学]