目的 探讨腮腺淋巴上皮囊肿的影像表现特点。方法 回顾性分析经手术和病理证实的5例腮腺淋巴上皮囊肿病例 CT、MR检查资料，与病理结果对照，分析其影像特点并复习总结相关文献。结果 本组病例CT主要表现为腮腺区类 圆形低或高密度占位，边缘光整，边界清楚，可见低密度囊壁，增强扫描囊壁中度强化，中心囊性部分无强化。MR 主要表现为边缘清晰的类圆形长T1长T2信号影，囊壁呈低信号，部分病灶内可见稍短T1信号。结论 腮腺淋巴上皮 囊肿CT及MRI影像表现具有一定的特征性，最终确诊需依靠病理。

Objective To study the CT and MRI image features of lymphoepithelial cyst (LEC) of the parotid gland. Methods Five cases of LEC were confirmed by surgery and pathology. The findings in the clinical ,pathology, CT and MRI were retrospectively analyzed and the related reference were review. Results CT scan shows that LEC appeared mainly as a round lesion with low or high density, smooth edge, clear boundary and visible low density cystic wall, contrast enhanced CT show moderate enhancement of the cystic wall, while the cystic center without enhancement. MRI mainly appeared as a cystic mass with long T1 and long T2 signal with low signal cystic wall, and short T1 signal maybe seen in part of the lesions. Conclusion LEC of parotid gland has some characteristic features, but image only is not sufficient for a definite diagnosis, which still relies on biopsy.