腮腺上皮组织良性肿瘤的临床及CT、MRI特点分析  

Analyses of the clinical,CT and MRI characteristics of parotid benign epithelial tumors

作　　者：朱国平 唐栋[2] ZHU Guoping;TANG Dong(Department of Radiology,The Fourth Affiliated Hospital Zhejiang University School of Medicine,Yiwu 322000,P.R.China;Department of Radiology,The Affiliated Hospital of Hangzhou Normal University Hangzhou,Huangzhou 310015,P.R.China)

机构地区：[1]浙江大学医学院附属第四医院放射科,浙江义乌322000 [2]杭州师范大学附属医院放射科,浙江杭州310015

出　　处：《医学影像学杂志》2018年第6期888-892,共5页Journal of Medical Imaging

摘　　要：目的回顾性分析腮腺上皮类良性肿瘤的影像学征象,寻求鉴别诊断要点。方法回顾性分析发生在腮腺内经手术及病理证实为腮腺上皮组织来源良性肿瘤的42例患者的临床及CT或MRI资料。结果 42例患者中,腮腺浅叶34例,位于深叶8例,其中多形性腺瘤21例(均为单发);腺淋巴瘤13例,其中6例为多发(4例为一侧多发,2例为双侧病灶);5例为基底细胞腺瘤(均单发);肌上皮瘤2例,均单发;本组病例中多形性腺瘤多见于中老年女性,CT或MRI上病变大多界清、光整,可有浅分叶及囊变,增强扫描肿瘤表现为持续渐进性强化;本组患者腺淋巴瘤大多有长期吸烟史,以中老年男性患者居多,病灶单发或多发、单侧或双侧,腮腺浅叶为其好发部位,增强后多表现为"快进快出",可见"血管贴边征";基底细胞腺瘤本组主要见于中青年女性,以腮腺浅叶居多,位于深叶者肿瘤体积偏大,肿瘤极易于囊变,增强后实性部分明显持续强化,典型者可见"裂隙"样表现;肌上皮瘤本组两例均发生于老年患者,腮腺浅叶,肿瘤形态欠规则,内见坏死囊变,增强后实性部分明显强化。结论 CT或MRI增强扫描对于腮腺组织上皮来源大部良性肿瘤的鉴别及定性诊断具有重要的价值,结合发病年龄、性别及部位可作出有效的鉴别诊断。Objective To retrospectively analyze the imaging findings of parotid benign epithelial tumors so as to seek the key points for the differential diagnosis. Methods The clinical,CT and MRI data of 42 patients with benign tumors derived from the parotid gland epithelial tissue proved by operation and pathology were analyzed retrospectively. Results Of those 42 patients,34 occurred in the superficial lobe of parotid gland and 8 in the deep lobe,in which 21 were pleomorphic adenoma（ all were solitary）. 13 were gland lymphoma,in which 6 were being multiple（ 4 were unilateral multiple,2 were bilateral lesions）,5 cases were basal cell adenoma（ all were single）,and 2 were myoepithelioma（ both solitary）. In this group,the pleomorphic adenoma commonly occurred in the middle-aged and elderly women. On CT or MRI,the lesions were well defined and smooth and may show the lobulated mass and cystic changes. The enhanced scanning showed the tumor exhibited continuously progressive enhancement. The patients with gland lymphoma had a history of long-term smoking. Aadenolymphomas commonly occurred in the old male persons. The lesions were single or multiple,located in unilateral or bilateral parotid,with superficial lobe as the predilection site. The enhanced scanning manifested the ＂ fast-in and fast-out ＂,with visible＂vascular belt＂sign. As for the basal cell adenoma in this group,the patients were mostly young women and the lesions were commonly located in the superficial lobe and,while,the tumor located in the deep lobe often had larger volume,which was prone to cystic changes. The enhanced scanning showed the solid part obviously progressive enhancement,with appearance of the typical ＂fissure＂sign. The two patients with myoepithelioma were both elderly persons. The tumors were located in superficial lobe,with irregular shape,necrotic cystic changes,and marked enhancement. Conclusion CT or MRI enhanced scan is of important value in differential diagnosis and qualitative diagnosis of epithelial tissue d

关 键 词：腮腺 上皮组织 肿瘤 影像学诊断 

分 类 号：R445[医药卫生—影像医学与核医学] R739.87[医药卫生—诊断学]