腮腺嗜酸细胞腺瘤的影像诊断及鉴别诊断  

Imaging Diagnosis and Differential Diagnosis of Parotid Gland Oncocytoma

作　　者：颜晓兰[1] 叶德湫[1] 陈杰云[1] 蔡雅丽[1] YAN Xiao-lan;YE De-qiu;CHEN Jie-yun;CAI Ya-li(Department of Radiology,Quanzhou First Hospital Affiliated to Fujian Medical University,Fujiang Quanzhou 362000)

机构地区：[1]福建医科大学附属泉州第一医院影像科,福建泉州362000

出　　处：《中国医疗器械信息》2024年第4期4-6,13,共4页China Medical Device Information

基　　金：泉州市科技计划资助(项目名称:磁共振多模态模型在腮腺肿瘤的诊断应用价值研究,项目编号:2019N029S)。

摘　　要：目的:探讨腮腺嗜酸细胞瘤的影像学表现,提高对腮腺嗜酸细胞瘤影像学的认识。方法:选择2018年1月~2022年12月确诊的7例腮腺嗜酸细胞腺瘤患者,术前均行计算机断层扫描(CT)或磁共振成像(MRI)检查,并由两名资深放射科医生回顾性分析并记录病变的影像学特征。结果:入选的7例腮腺嗜酸细胞腺瘤患者中,男性4例,女性3例。局部疼痛是最常见的临床表现。所有病例均为单侧单一肿块。2例患者的腮腺嗜酸细胞瘤位于腮腺深叶,5例位于浅叶。7例嗜酸细胞腺瘤中6例表现为边界清晰,仅1例边缘毛糙;4例形态规则,呈类圆形,3例形状不规则或呈分叶状,沿茎突下颌间隙生长;3例含有囊性成分,4例呈实性肿块,未见明显的出血、钙化、坏死区域。大多数病变在CT图像上显示为软组织密度,MRI图像T1加权像上为低信号,T2加权像上为稍高信号,增强扫描实性成分呈明显强化,囊性成分未见强化,2例肿块局部呈裂隙样不强化。结论:腮腺嗜酸细胞腺瘤中老年人好发,单发,通常表现为与周围腮腺组织边界清晰,可呈分叶状或不规则状,沿茎突下颌间隙生长,增强明显强化,有时伴有囊性成分、呈裂隙样不强化。当临床遇到这些特征时,应考虑到腮腺嗜酸细胞腺瘤的可能。Objective:To investigate the imaging features of parotid gland oncocytoma and improve the understanding of parotid gland oncocytoma imaging.Methods:A total of 7 patients diagnosed with parotid gland oncocytoma from January 2018 to December 2022 were selected.Computed tomography(CT)or magnetic resonance imaging(MRI)were performed before surgery,and the imaging features of the lesions were retrospectively analyzed and recorded by two senior radiologists.Results:Among the 7 patients with oncocytoma of parotid gland,4 were male and 3 were female.Local pain is the most common clinical presentation.All cases had a single mass.parotid gland oncocytoma were located in the deep lobe of the parotid gland in 2 patients and in the superficial lobe in 5 patients.Of the 7 cases of parotid gland oncocytoma,6 cases showed clear boundary,only 1 case had rough edge.In 4 cases,the shape was regular,almost circular,and in 3 cases,the shape was irregular or lobulated,growing along the styloid mandibular space.3 cases had cystic components,4 cases had solid masses,and no obvious bleeding,calcification,or necrotic areas were observed.Most of the lesions showed soft tissue density on CT images,low signal on T1-weighted images and slightly high signal on T2-weighted images on MRI images,and the solid component showed obvious enhancement on enhanced scans,while the cystic component did not,and 2 cases showed local fissure-like non-enhancement.Conclusion:Parotid gland oncocytoma occur frequently in middleaged and elderly people and are solitary.They are usually characterized by a clear boundary with the surrounding parotid tissue,can be lobulated or irregular,grow along the styloid mandibular space,and the enhancement is obviously enhanced,sometimes accompanied by cystic components,and are fissure-like nonenhancement.When these features are encountered clinically,the possibility of parotid gland oncocytoma should be considered.

关 键 词：嗜酸性腺瘤 腮腺 影像诊断 计算机断层扫描 磁共振成像 

分 类 号：R445[医药卫生—影像医学与核医学]