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目的探讨腮腺腺淋巴瘤MRI表现特点,评价MRI对其诊断价值。方法回顾性分析经手术病理证实的18例腮腺腺淋巴瘤MRI特征性表现,影像学重点分析包括病灶的数目、部位、大小、形态、边缘、信号、强化特征等。结果 18例腮腺腺淋巴瘤患者中,男16例(94.4%),女2例,50岁以上14例(77.8%);18例患者中共发现32个病灶,单侧单发10例,单侧多发5例,双侧多发3例,32个病灶中26个位于腮腺浅叶后下方;病灶一般呈圆形或椭圆形,边界清楚、光滑;T1WI多表现为等、稍高信号,T2WI及压脂T2WI均为混杂信号,增强后表现为轻中度强化。结论 50岁以上的男性患者,MRI发现腮腺浅叶的后下象限病灶,边界清楚,有轻中度强化,尤其多发者,诊断时应先考虑腮腺腺淋巴瘤。
Objective To investigate the MRI features of parotid gland lymphoma and evaluate the diagnostic value of MRI. Methods The MRI features of 18 parotid gland lymphoma confirmed by surgery and pathology were analyzed retrospectively. The focus of imaging analysis included the number of lesions, location, size, morphology, margins, signals and enhancement features. Results Among 18 patients with parotid gland lymphoma, 16 were male (94.4%), 2 were female, and 14 (77.8%) were over 50 years of age. Twenty-two lesions were found in 18 patients, 10 were unilateral and 10 Multiple lesions in 5 cases, bilateral multiple in 3 cases, 32 lesions in the parotid gland behind the lower; lesions were generally round or oval, clear boundary, smooth; T1WI and more, slightly higher signal, T2WI and pressure Fatty T2WI are mixed signals, enhanced to show mild to moderate enhancement. Conclusions Male patients over the age of 50, MRI found in the parotid gland shallow posterior quadrant lesion, border clear, mild to moderate enhancement, especially in those with multiple, diagnosis should first consider parotid gland lymphoma.