摘要
目的：研究腮腺Warthin瘤的CT、MRI表现，提高对本病的认识。方法：回顾性分析37例经病理证实的腮腺Warthin瘤患者的临床及影像资料。结果：37例腮腺Warthin瘤患者中，男33例，女4例，年龄45～82岁（平均55.5岁），55岁以上29例（78.4%）；有20年以上吸烟史27例（73%）。37例共53个瘤灶，25例为单发，8例为单侧多发，4例为双侧多发。肿瘤多位于腮腺浅叶后下方（79.2%），呈圆形、椭圆形软组织肿块，边缘光整；平均长径约2.8cm。CT平扫（21灶）肿瘤呈实性（11灶）或囊实性（10灶），实性部分呈稍高密度；MRI检查（32灶）T1WI瘤灶均呈低信号，压脂T2WI呈稍高混杂信号（27灶），内可见裂隙状或圆形长T1、长T2信号，16灶T1WI瘤内见斑片状高信号。增强扫描（17例27灶）动脉期呈中等度强化，延迟期强化程度下降，18灶见包膜强化。结论：腮腺Warthin瘤有一定的临床和影像特点，认识这些特点有助于术前诊断。
Abstract
Objective: To probe the CT and MR imaging appearances of Warthin tumor of parotid gland for improving the diagnostic recognition. Methods: Thirty-seven consecutive patients of Warthin tumor in parotid glands confirmed by the surgical pathology were retrospectively evaluated based on the clinical and imaging data. Results: Of the 37 patients(33 men and 4 women; age ranged from 45~82 years, mean age 55.5 years), 29(78.4%) patients were over 55 years old and 27(73%) cases had smoking habit over twenty years. Of the 37 patients with 53 tumors, 25 cases had solitary lesions, 8 cases had multiple lesions on one side, 4 cases had bilateral tumors. Most Warthin tumors(79.2%) located in the posterior and inferior quadrant of the parotid gland. On CT and MRI, Warthin tumors usually were spherical or ovoid in shape, had a smooth surface, the average maximal cross-sectional diameter was 2.8cm. On CT scan(21 tumors), the lesions showed solid(11 lesions) or cystic(10 lesions) and the solid part of tumor showed hyperdensity compared with normal parotid gland. All the 32 tumors detected by MRI examination in our series showed low SI on T1WI and heterogeneous high SI(27 lesions) on T2WI with fat-suppression. Cystic area showed long T1, T2 signal intensities. Sixteen lesions had high-SI area on T1WI. Most of the lesions showed a rapid early moderate enhancement and rapid washout later after contrast administration. Some tumors showed enhanced capsule. Conclusion: With the characteristic clinical and imaging features of Warthin tumor in parotid glands, it is helpful to preoperative diagnosis.
关键词
腺淋巴瘤 /
腮腺肿瘤 /
体层摄影术 /
螺旋计算机 /
磁共振成像
Key words
Adenolymphoma /
Parotid neoplasms /
Tomography /
spiral computed /
Magnetic resonance imaging
陈殿森;李新瑜;王 琳.
腮腺Warthin瘤的CT、MRI征象分析[J]. 中国临床医学影像杂志. 2011, 22(7): 461-463
CHEN Dian-sen;LI Xin-yu;WANG Lin.
CT and MRI appearances of Warthin tumor of the parotid gland[J]. Journal of China Clinic Medical Imaging. 2011, 22(7): 461-463
中图分类号：
Ｒ739.8
Ｒ730.261
R445.2
R814.42
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