腮腺腺淋巴瘤多层螺旋CT诊断与鉴别诊断  

Multi--slice Spiral CT Diagnosis and Differential Diagnosis of Parotid Adenolymphoma

作　　者：丁莹莹[1] 李鹃[1] 李卓琳[1] 张莹[1] 

机构地区：[1]昆明医学院第三附属医院放射科,云南昆明650118

出　　处：《实用放射学杂志》2009年第9期1250-1252,1256,共4页Journal of Practical Radiology

摘　　要：目的探讨腮腺腺淋巴瘤的多层螺旋CT（MSCT）表现及双期扫描强化特点。方法回顾性分析经手术及病理组织学证实的19例共33个病灶腮腺腺淋巴瘤的CT平扫及增强影像学特征，影像学分析包括病灶数目、部位、形态、大小、密度及强化特点。19例均为男性，50岁以上者17例（89．5％）。结果19例患者23侧发病，共33个病灶，其中病灶位于浅叶27个（81．82％），深浅叶同时受累6个；27个（81．82％）病灶边界清楚，密度均匀19个，14个病灶内有多发小低密度影；增强后明显强化29个，CT值上升平均为60．3HU；12例行双期扫描者中，10例表现为动脉期快速明显强化。结论MSCT平扫及双期增强扫描有助于腮腺腺淋巴瘤的诊断与鉴别诊断。Objective To investigate multi--slice spiral CT（MSCT） characteristics and double phase enhanced scanning of adenolymphomas of the parotid gland. Methods Plain CT and enhanced CT scanning characteristics of 19 cases（33 lesions）of adenolymphomas confirmed by operation and histopathology were studied retrospectively. The analysis of imaging characteristics included the number, position, shape, size, density and enhance characteristics of the lesions. All of 19 patients were male. 17 cases were more than 50 years old （89.5 % ）. Results 33 lesions （23 sides）were found in 19 cases. 27 lesions（81.82 % ）were located in the superficial lobe. 6 lesions were located in the both superficial and deep lobe. The margins of the lesions in 27（81.82 %）were well--defined. The density were homogeneous in 19 lesions. Multiple small low--dense areas were found in 14 lesions. 29 lesions showed significantly enhancement, the mean CT value of them increased 60.3HU. 10 cases showed significantly and fastly enhancement in arterial phase ,among 12 cases of double phase scanning. Conclusion The plain scan and double phase enhanced scanning of MSCT are useful in diagnosis and differential diagnosis.

关 键 词：腮腺 腺淋巴瘤 体层摄影术 X线计算机 

分 类 号：R739.91[医药卫生—肿瘤] R814.42[医药卫生—临床医学]