CAJ | 학술논문

目的分析乳腺炎的影像特征.方法回顾性分析58例病理证实为乳腺炎的乳腺X线、超声及MRI表现特点,并根据影像特征判定乳腺影像报告和数据系统(BI-RADS)分级.30例行乳腺X线检查,49例行超声检查,58例均行MRI检查.结果 6例乳腺X线和2例超声检查无明确阳性发现,MR图像上可以显示所有病灶.乳腺炎在乳腺X线像上多表现为非对称性致密(16/30,53.3％),超声声像图上多呈单发或多发相互连通或不连通的低回声肿块样病灶(34/69,69.4％)；增强MR图像上,48例(48/58,82.8％)患者表现为非肿块样强化,且多表现为多发区域样分布(66.7％,32/48)及内部呈相互连通或不连通的集丛环状强化(63.1％,31/48).在58例患者中,时间-信号强度曲线呈Ⅰ型及Ⅱ型者分别为28 (48.3％)和29例(50.0％).BI-RADS分类为0级(33.3％,10/30)在乳腺X线摄影、4a类在超声成像(36.7％,18/49)及MRI检查(56.9％,33/58)中所占的比例最大.结论乳腺炎的X线摄影及超声表现无特异；在增强MR图像上呈多发的区域样分布,及相互连通或不连通的集丛环状强化的非肿块样强化.
목적 분석유선염적영상특정.방법 회고성분석58례병리증실위유선염적유선X선、초성급MRI표현특점,병근거영상특정판정유선영상보고화수거계통(BI-RADS)분급.30례행유선X선검사,49례행초성검사,58례균행MRI검사.결과 6례유선X선화2례초성검사무명학양성발현,MR도상상가이현시소유병조.유선염재유선X선상상다표현위비대칭성치밀(16/30,53.3％),초성성상도상다정단발혹다발상호련통혹불련통적저회성종괴양병조(34/69,69.4％)；증강MR도상상,48례(48/58,82.8％)환자표현위비종괴양강화,차다표현위다발구역양분포(66.7％,32/48)급내부정상호련통혹불련통적집총배상강화(63.1％,31/48).재58례환자중,시간-신호강도곡선정Ⅰ형급Ⅱ형자분별위28 (48.3％)화29례(50.0％).BI-RADS분류위0급(33.3％,10/30)재유선X선섭영、4a류재초성성상(36.7％,18/49)급MRI검사(56.9％,33/58)중소점적비례최대.결론 유선염적X선섭영급초성표현무특이；재증강MR도상상정다발적구역양분포,급상호련통혹불련통적집총배상강화적비종괴양강화.
Objective To describe the radiological features of mastitis.Methods Imaging findings were retrospectively reviewed in 58 women with mastitis,which was confirmed by pathological results.The imaging features were described according to the BI-RADS (breast imaging reporting and data system).All 58 patients had preoperative MRI,while 49 of them were examined with sonograms and 30 with mammograms preoperatively.Results Overall,no remarkable findings were reported on 6 mammography and 2 sonography examinations,but all 58 lesions were identified on MRI in our study.Asymmetrical density (n =16,53.3％) on mammograms and solitary or multiple separated/contiguous hypoechoic mass-like lesions (n =34,69.4％) on ultrasound were the most common signs of mastitis.On enhanced MR images,82.8 ％ (48/58) patients showed non-mass-like enhanced lesions.Multiple,regional enhancement (66.7％,32/48) and separated or contiguous,clumped,rim-like enhancement (63.1％,31/48) were the most common manifestations in non-mass-like enhanced lesions.Of the 58 patients,type Ⅰ and type Ⅱ timesignal intensity curve were detected in 48.3％ and 50.0％ of the patients,respectively.BI-RADS 0 had the highest frequency in reports on mammography (33.3％,10/30),while category 4a was most frequent on sonography (36.7％,18/49) and also on MRI (56.9％,33/58).Conclusion The imaging findings from mammography and US are non-specific for mastitis,therefore,MR can be helpful in the diagnosis,especially in the presence of non-mass-like enhancement that are multiple,regional,separated,or contiguous,clumped,and tim-like.