摘要
目的探讨腮腺淋巴上皮癌的MRI表现。方法回顾性分析经手术病理证实的12例腮腺淋巴上皮癌患者的临床资料及MRI表现。结果12例患者单发11例、多发1例。4例位于浅叶,8例同时累及浅深叶;类圆形或椭圆形6例,多结节融合串状1例,铸形5例;边界不清7例。T1WI呈等或稍低信号,T2WI脂肪抑脂序列呈较均匀高信号。增强扫描10例中度至明显均匀强化。5例与邻近组织粘连,1例侵犯下颌骨,1例浸润皮下脂肪及皮肤。5例伴区域淋巴结转移病灶,其中4例为铸形病灶。结论腮腺淋巴上皮癌MRI特征是常单发信号均匀病灶,易浸润周围组织,尤其腮腺后区伴有同侧颈部、颌下非坏死性淋巴结转移铸形病灶,信号特点及强化方式与原发灶相同,增强后中度至明显均匀持续强化。结合临床病史和上述特征,有助于提高本病影像诊断的准确率,协助临床制定治疗方案。
Objective To investigate the MRI characteristics of parotid lymphoepithelial carcinoma.Methods The clinical data and MRI findings of 12 cases of parotid lymphoepithelial carcinoma confirmed by operation and pathology were analyzed retrospectively.Results There were 11 single cases and 1 multiple case in 12 patients.Four cases were located in the superficial lobe and 8 cases involved the deep lobe at the same time.Six cases of circular or elliptical shape,1 case of multinodular fusion and 5 cases of cast shape,7 cases had unclear boundary.T1WI showed equal or slightly low signal,and T2WI fat saturation sequence showed relatively uniform high signal.Ten cases showed moderateto-obvious uniform enhancement by enhanced scanning.Five were adherent to adjacent tissues,one invaded the mandible,and one infiltrated the subcutaneous fat and skin.Five patients had regional lymph node metastases,4 of which were cast lesions.Conclusion The MRI features of parotid lymphoepithelial carcinoma are usually single signal-like uniform focus,which is easy to infiltrate the surrounding tissues,especially in the posterior region of parotid gland,accompanied by a cast focus of non-necrotizing lymph node metastasis in the ipsilateral neck and submandibular region,and the signal characteristics and enhancement mode are the same as those of primary focuses,moderate to obvious uniform and continuous enhancement after enhancement.Combined with the clinical history and above characteristics,it is helpful to improve the accuracy of imaging diagnosis of this disease and assist in the clinical development of treatment plan.
作者
殷洁
徐雷鸣
潘江峰
杨道玲
陈琳
周敏请
YIN Jie;XU Leiming;PAN Jiangfeng(Department of Imaging,Jinhua Central Hospital in Zhejing Province,Jinhua 321000,China)
出处
《全科医学临床与教育》
2023年第1期22-24,共3页
Clinical Education of General Practice
基金
金华市科学技术研究计划公益项目(2019-4-011)。
关键词
淋巴上皮癌
腮腺
磁共振成像
lymphoepithelial carcinoma
parotid gland
magnetic resonance imaging
