摘要
目的：探讨腮腺腺淋巴瘤的MRI表现，提高对本病的诊断及鉴别诊断水平。材料和方法：回顾性分析经手术病理证实的40例腮腺腺淋巴瘤患者的临床及MRI表现。40例中男33例，女7例；年龄19~82岁，平均56岁，50岁以上31例（77.5％）；有吸烟史33例（82.5%）。结果：40例腮腺腺淋巴瘤共发现62个肿瘤（单侧单发29例，单侧多发6例，双侧多发5例），其中46个（74.2%）位于腮腺后下方。肿瘤一般呈圆形、椭圆形或分叶状软组织肿块，边缘光整，T1WI呈低信号，T2WI及压脂T2WI呈低、高混杂信号，囊变区呈明显长T1、长T2信号，增强后表现为早期轻中度强化。结论：腮腺腺淋巴瘤有一定的临床和影像特点，术前MRI检查不但可以对肿瘤进行术前准确定位和发现多发病灶，而且有利于肿瘤的诊断、鉴别诊断和治疗方法的选择。
Abstract
Objective: To analyse the MRI appearances of adenolymphoma in parotid gland, and improve the accuracy of diagnosis. Materials and Methods: The clinical and MRI findings of 40 cases with adenolymphoma in parotid gland were retrospectively analyzed. Among the 40 cases, the ratio of male to female was about 4.7∶1(33∶7), and the age ranged from 19 to 82 years old(mean age 58 years old), 31 cases of adenolymphoma(31/40, 77.5%) were over 50 years old, and 33 cases(33/40, 82.5%) had smoking habit. Results: Among the 40 cases, altogether there were 62 lesions, with solitary lesions(n=29), multiple lesions(n=11), most adenolymphomas(46/62, 74.2%) located in the posterior and inferior quadrant. On MRI, lesions were round, oval or lobulated in shape, well-defined, hypointense on T1WI, iso- or hyterintense on T2WI, cystic area showed long T1, long T2 signal, most of the lesion showed early mild or moderate enhancement after contrast administration. Conclusion: Adenolymphoma of parotid gland have some characteristic features on clinical and imaging, before operation, MRI not only can well demonstrate the size, number and location of adenolymphoma, but also can help diagnosis, differentiation diagnosis and therapeutic decision.
关键词
腺淋巴瘤 /
腮腺肿瘤 /
磁共振成像
Key words
Adenolymphoma /
Parotid neoplasms /
Magnetic resonance imaging
夏建东;江新青;彭国晖.
腮腺腺淋巴瘤的MRI诊断及鉴别诊断[J]. 中国临床医学影像杂志. 2009, 20(8): 587-590
XIA Jian-dong;JIANG Xin-qing;PENG Guo-hui.
MRI diagnosis and differential diagnosis of adenolymphoma in parotid gland[J]. Journal of China Clinic Medical Imaging. 2009, 20(8): 587-590
中图分类号：
Ｒ733.4
Ｒ739.87
Ｒ445.2
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