腮腺基底细胞腺瘤MRI诊断与鉴别诊断  

MRI Diagnosis and Differential Diagnosis of Basal Cell Adenoma of Parotid Gland

作　　者：刘晓玲 王志敏[2] 陈潭辉[2] LIU Xiao-ling;WANG Zhi-min;CHEN Tan-hui(Department of Imaging,Mengchao Hepatobiliary Hospital of Fujian Medical University,Fujian Fuzhou 350000;Department of Imaging,the First Affiliated Hospital of Fujian Medical University,Fujian Fuzhou 350000)

机构地区：[1]福建医科大学孟超肝胆医院影像科,福建福州350000 [2]福建医科大学附属第一医院影像科,福建福州350000

出　　处：《中国医疗器械信息》2021年第15期57-58,91,共3页China Medical Device Information

摘　　要：目的:探讨腮腺基底细胞腺瘤MRI诊断,提高术前诊断准确率。方法:回顾性分析2010年10月~2019年10月福建医科大学附属第一医院收治的经病理证实的45个腮腺基底细胞腺瘤的临床表现及MR影像特点,术前均行MRI平扫及增强检查。结果:腮腺基底细胞腺瘤多见于女性,平均年龄47.5岁,主要表现为耳垂下方无痛性肿块,最大径为3.8cm。病灶信号欠均匀,35个发生囊变,36个周边见T2WI低信号包膜。18个病灶行DWI检查,16个弥散明显受限。增强示43个病灶实性部分明显强化,8个行动态增强扫描,其中有7个为速升平台型曲线。结论:腮腺基底细胞腺瘤好发于中老年女性,体积较小,易出血、坏死、囊变,增强扫描实性部分呈明显强化,结合临床特点有助于肿瘤诊断与鉴别。Objective:To explore the MRI diagnosis of basal cell adenoma of parotid gland and improve the accuracy of preoperative diagnosis.Methods:A retrospective analysis of the clinical manifestations and MR imaging characteristics of 45 parotid basal cell adenomas admitted to the First Affiliated Hospital of Fujian Medical University from October 2010 to October 2019.Preoperative plain MRI and enhanced MRI were performed for all patients.Results:Basal cell adenoma of the parotid gland was more common in women,with an average age of 47.5 years.The main symptoms were painless masses below the earlobe,with the largest diameter is 3.8cm.Cystic degeneration was observed in 35 lesions,and low signal envelope in T2W1 was seen in 36 lesions.DWI sequence examination was performed in 18 lesions,and significant restricted diffusion is observed in 16 lesions.Enhanced examination showed that 43 lesions were significantly enhanced in solid parts.Dynamic contrast-enhanced scan was performed in 8 lesions,which 7 lesions showed persistent enhancement.Conclusion:Basal cell adenoma of parotid gland tends to occur in middle-aged and elderly women.It is small in size,prone to hemorrhage,necrosis,cystic degeneration,and obvious enhancement in the solid components,which is helpful for the diagnosis and differentiation of tumors combined with clinical characteristics.

关 键 词：腮腺 基底细胞腺瘤 MRI 诊断 

分 类 号：R445.2[医药卫生—影像医学与核医学]