摘要
目的探讨原发性睾丸非霍奇金淋巴瘤(PTNHL)的CT和MRI表现。方法回顾性分析21例经病理证实的PTNHL患者,10例行MR平扫,8例行MR增强扫描,10例行扩散加权成像(DWI)检查,11例行CT平扫及增强扫描,分析其CT与MRI特征包括肿块的形态、密度/信号、强化方式以及周围结构情况等。结果19例为单侧睾丸发病,2例为双侧发病;3例累及精索,6例伴睾丸鞘膜积液,5例累及附睾,3例伴淋巴结侵犯。10例CT上呈等-稍高密度,增强后呈轻中度均匀强化。MRI上8例T1WI呈等信号,7例T2WI呈稍低信号,10例DWI呈高信号,表观扩散系数(ADC)图呈低信号,6例增强后轻中度强化,强化较均匀,2例伴囊变,呈不均匀强化。结论对于无痛性睾丸肿大的中老年男性患者,肿块密度/信号均匀,增强后轻中度强化,应考虑PTNHL的可能性。DWI上实性部分的扩散受限具有重要诊断价值。
Objective To analyze the CT and MRI findings of primary testicular non-Hodgkin lymphoma(PTNHL).Methods Twenty-one patients with PTHL confirmed by pathology were retrospectively analyzed.Ten patients underwent non-enhanced MR scanning,eight underwent enhanced MR examination,10 underwent DWI examination,and 11 underwent non-enhanced and enhanced CT scanning.The CT and MRI features(including the shape,density/signal,enhancement pattern and surrounding structures of the tumor)were analyzed.Results 19 cases involved single testis,2 cases involved bilateral testes,3 cases involved the spermatic cord,6 cases were complicated by testicular hydrocele,5 cases involved the epididymis and 3 cases presented with lymph node metastases.On CT scan,10 cases showed the lesions were iso-to slightly hyperdense,and slightly and moderately homogeneously enhanced.On MRI,8 cases showed that the lesions showed isointensity on T1 WI,7 cases showed slightly low signal on T2 WI,10 cases showed high signal on DWI,and low signal on ADC.After contrast enhancement,the lesions of 6 cases showed mild to moderate homogeneous enhancement.Two cases with cystic degeneration showed inhomogeneous enhancement.Conclusion For the elderly male patients with painless testicular enlargement,the possibility of PTNHL should be considered if the tumor shows homogeneous density/signal and mild or moderate enhancement.Restricted diffusion of the solid part on DWI has important diagnostic value.
作者
庄碧梅
林禹
蔡思怡
庄雄杰
曹代荣
ZHUANG Bimei;LIN Yu;CAI Siyi(Department of Radiology,the First Affiliated Hospital of Xiamen University,Xiamen,Fujian Province,361000,P.R.China)
出处
《临床放射学杂志》
CSCD
北大核心
2020年第3期510-514,共5页
Journal of Clinical Radiology
作者简介
通讯作者:曹代荣
