腮腺腺淋巴瘤的MRI表现特征分析

摘要

Objective To investigate the distinct MRI characteristics of parotid lymphoma,and provide the basis for the diagnosis and treatment of parotid lymphoma.Methods The clinical data of 50 patients with parotid lymphoma treated from January 2013 to December 2017 in our hospital was selected.The manifestation characteristics based on the conventional MRI,dynamic contrast enhancement-MRI (DCE-MRI) and diffusion weighted imaging (DWI) were compared. Results A total of 67 lesions were observed in the 50 patients,including 24 unilateral and single cases,6 unilateral and multiple cases,and 20 multi-lateral and multiple cases.For 67 parotid lymphoma lesions,there were 45 solid lesions with uniform high T1 and high T2 signal intensity and 22 cystic lesions with diversified signal intensity.A total of 19 patients with 41 leisions received the DCE-MRI examination,37 cases with rapid enhancement and rapid washout enhancement, 4 cases with srapid enhancement and slow washout enhancement were observed.Conclusion The combined examination methods of the distinct MRI characteristics can positively improve the diagnosis sensitivity,and make for the clinical diagnosis and differential diagnosis of parotid lymphoma,which has positive clinical application value.%目的 探讨腮腺腺淋巴瘤在不同MRI 成像方式上的影像学特点,从而为疾病的诊断和鉴别提供依据.方法 回顾性分析2013年1月～2017年12月我院收治的50例腮腺腺淋巴瘤患者的临床资料.比较50例腮腺腺淋巴瘤患者在常规MRI、动态扫描增强(DCE-MRI)以及磁共振扩散加权成像(DWI)等不同磁共振成像方法上的表现特征.结果 50例患者共67个病灶,其中单侧单发24例,单侧多发6例,双侧多发20例.67个腮腺腺淋巴瘤病灶中,其中45个病灶以实性病灶为主,呈现较为均匀的长T1、长T2信号,22个病灶存在囊变区,囊变区信号表现多样.19例患者接受DCE-MRI 检查,结果显示,41个病灶中37个病灶为快速强化、快速廓清型强化模式,4个为快速强化、缓慢廓清型强化模式.结论 综合结合多种MRI 成像方法,可提高对腮腺腺淋巴瘤诊断的敏感性,有利于疾病的诊断和鉴别诊断,具有积极的临床应用价值.