MRI对腮腺腺淋巴瘤的诊断价值

目的探讨腮腺腺淋巴瘤的MRI影像学特征。方法回顾性分析经手术病理证实的27例腮腺腺淋巴瘤的MRI征像。结果 27例腮腺腺淋巴瘤患者,共42个病灶,其中35个病灶位于腮腺后下极,单侧单发16例,单侧多发7例,双侧多发4例。在MRI上,肿瘤呈圆形或椭圆形软组织肿块,边缘光整,T1WI表现为等或稍高信号,T2WI及压脂T2WI均为混杂信号,增强后病灶呈早期轻中度强化,囊变区不强化;结论 MRI平扫及增强扫描有助于腮腺腺淋巴瘤的诊断与鉴别诊断。

The Diagnostic Value of MRI in Parotid Adenolymphomas

Objective To investigate the characteristics of adenolymphomas of the parotid gland. Methods The MRI characteristics of adenolymphomas in parotid gland in 27 cases proved by operating pathology. Results 42 lesions were tbund among 27 cases. 35 of the lesions were located in tile posterior and inferior quadrant of the parotid gland. 16 were solitary and 7 were multiple lesions in one side while the last 4 were multiple lesions bilaterally located. On MRI, the adenolymphomas were presented as round and oval soft tissue mass with smooth border. T1W1 presented as intermediated or high signal intensity while T2WI and FS T2W1 presented mixed signals. The lesions showed prophase mild and moderate enhancement except the cystic change area after strengthening the signal, Conclusion Plain and enhanced MRI scanning conduce to the diagnosis and differential diagnosis of adenolymphomas in the parotid gland.