摘要
目的:探讨原发性乳腺非霍奇金淋巴瘤(PNHLB)的影像学特征。方法:回顾性分析6例经手术病理证实的PNHLB患者的影像表现。6例中,4例行X线检查,4例行CT检查(2例平扫+增强,2例平扫),5例行MRI检查。结果:6例均为单侧发病,1例同侧有2个病灶,中位瘤径5.8cm。乳腺X线摄片表现为分叶状肿块1例,不规则肿块1例,大片密度增高影2例。4例CT平扫示病灶均呈软组织密度,1例巨大肿块的表面皮肤增厚,1例乳腺弥漫增大密度增高,2例肿瘤增强后呈轻中度强化。5例MRI平扫示病灶信号均匀,压脂T2WI上呈稍高信号,DWI上呈高信号;增强后3例呈均匀团块状强化、1例呈外周结节样强化、1例呈不均匀环形强化,时间-信号曲线表现为速升缓降型3例,平台型2例。结论:PNHLB的影像表现多样但有一定特征,钼靶X线片和CT对本病有一定诊断价值,MRI结合DWI和动态增强扫描能准确显示病灶的大小和范围,对本病的诊断和鉴别诊断价值较大。
Objective：To study the imaging manifestations of primary breast non-Hodgkin lymphoma. Methods：Imaging data from 6 patients with primary breast lymphoma confirmed histologically were retrospectively analyzed. Mammography was performed in 4 cases,while CT in 4 cases （2 patients accepted enhanced CT examination） and MRI in 5 cases. Resuits：Unilateral lesions were found in all cases,including one case with two lesions. The mean size was 5.8cm. On mammogram the lesion manifested as a lobulated mass （n= 1）, irregular lump （n= 1） or diffuse increased opacity （n= 2）. On plain CT of 4 cases, the tumors presented as soft tissue density,a huge mass with skin thickening in one case, diffuse increased opacity with enlargement of breast in one case,and mild to moderate homogeneous enhancement in two cases. Plain MRI of 5 cases showed that the tumors were homogeneous isointense on T1 WI, mildly hyperintense on fat suppression T2 WI,and hy- perintense on DWI. On post-contrast images,3 cases showed homogeneous and obvious enhancement,one case showed peripheral nodular enhancement,one case showed heterogeneous ring-like enhancement. Time-signal intensity curve showed rapid raise and delayed washout in 3 cases, platform type in 2 cases. Conclusion：Primary breast non-Hodgkin lymphoma has various imaging findings with certain characteristic features. Mammography and CT are helpful to the diagnosis of this disease,MRI combined with DWI and dynamic contrast enhancement can accurately display the size and extent of the lesions,and is of great value to the diagnosis of breast lymphoma.
出处
《放射学实践》
北大核心
2016年第12期1201-1204,共4页
Radiologic Practice
