摘要
目的探讨乳腺黏液癌在MRI上的影像表现特点及诊断要点。材料与方法搜集2013-2015年我院15例术前接受乳腺MR检査并经手术病理证实的乳腺黏液癌患者,对其MR图像进行回顾性分析,包括:病变位置、大小、形态,平扫时TIW1、T2WI及抑脂序列信号强度,增强后肿块强化方式及动态增强曲线类型,DWI表现及ADC值测定,并结合术前乳腺影像报告和数据系统(BI-RADS)MRI的影像诊断结果进行分析。结果15例乳腺黏液癌(12例单纯型、3例混合型,4例术后示腋窝淋巴结转移)发生于左乳者8例(53.3%),右乳者7例(46.7%);位于中央前部者1例(6.7%),余丨4例(93.3%)均位于外周偏上、偏内侧区域,其中位于中部者10例(66.7%)、后部者4例(26.6%);均表现为肿块,最大径7?45 mm不等,其中8例(53.3%)呈类圆形,边界清晰光整或伴浅分叶,7例(46.7%)形态欠规则,边缘局部模糊、毛糙或伴毛刺;平扫T1WI呈等或稍低信号,T2WI及脂肪抑制序列上均呈高或明显高信号;动态增强后,9例(60%)以增强早期肿块边缘明显环形強化伴肿块内向心性渗透样强化为主,6例(40%)以肿块内不均匀強化为主;TIC除1例(6.7%)为平台型,佘14例(93.3%)均为上升型。DWI上全部或局部区域呈明显高信号,平均ADC值mm^2/s时为(2.0S±0.44)×10^(-3)mm^2/s,高于正常乳腺组织(1.45±0.56)×10^(-3)mm^2/s。结论乳腺黏液癌的MRI表现具有一定的特征性,术前MRI检查有助提高影像诊断的准确性、并对预后有提示价值。
Objective：To analyze MRJ features and diagnostic essentials of mucinous breast carcinoma（MBC）.Materials and Methods：MRI characteristics of 15 MBC including the lesions＇ location,size,shape,and the signal intensity on T1 WI,T2WI,T2WI-FS,and the enhancement features and time-signal intensity curve（TIC） types.and DWI,ADC value.The preoperative breast MRI BI-RADS reports were reviewed right breast in 7 cases（46.7%）.One case（6.7%） located in the central front,another14 cases（93.3%） located in the peripheral upper or inner area,which was located in in aii the patients,which diameters were 7-45 mm,of which 8 cases（53.3%） showed round,clear boundary or with light leaflets,7 cases（46.7%） showed irregular shapes.local fuzzy or coarse edge,even combined with burr On T1 WI,all showed iso-or slightly hypo-intensity.On T2 WI and SPAIR,all showed hyper-or obvious hyperpermeated into the mass,6 cases（40%） showed heterogeneous enhancement.The TIC curves of 14 cases（93.3%） were gradually enhancing pattern,and just I case（6.7%;was plateau pattern.On DWI,there were obviously hyper-intensity in full or partial area,the average ADC value was（2.08±0.44）×10^-3 mm Vs when b-value was 800 s/mm2,which was higher than normal breast tissue（1.45±0.56）×10^-3 mm2/s.Conclusions：The MRI characteristics of MBC are helpful for the preoperative imaging diagnosis and the prognosis prediction.
作者
华小兰
华佳
所世腾
成芳
耿小川
张庆
李俊
张科蓓
HUA Xiao-lan HUA Jia SUO Shi-teng CHENG Fang GENG Xiao-chuan ZHANG Qing LI Jun ZHANG Ke-bei(Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China)
出处
《磁共振成像》
CAS
CSCD
2017年第3期182-188,共7页
Chinese Journal of Magnetic Resonance Imaging
基金
上海交通大学医工交叉基金重点项目(编号:YG2014ZD05)~~
关键词
乳腺肿瘤
黏液癌
磁共振成像
Breast neoplasms
Mucinous carcinoma
Magnetic resonance imaging
