乳腺导管原位癌及微浸润的MR影像学表现  

MR imaging features of breast ductal carcinoma in situ

作　　者：何翠菊[1] 赵林[2] 罗娅红[1] 

机构地区：[1]辽宁省肿瘤医院放射科,辽宁沈阳110042 [2]辽宁省肿瘤医院乳腺科

出　　处：《实用放射学杂志》2014年第9期1473-1476,共4页Journal of Practical Radiology

摘　　要：目的 总结乳腺导管原位癌及其微浸润的MR影像学表现.方法 回顾性分析经手术和病理证实的乳腺导管原位癌和微浸润病例30例.所有病例均于术前进行MR成像.结果 MR检出所有病例,敏感性为100％.10例呈肿块样强化（33.3％）.20例呈非肿块样强化（66.7％）.内部强化不均匀4例（20％）,强化均匀2例（10％）,内部卵石状强化和簇状小环状强化共11例（55％）,另3例病灶呈点簇状强化（15％）.所有病例时间-信号强度（TIC）曲线呈流出型12例,平台型18例.结论 乳腺导管原位癌及其微浸润的MR特征性表现为非肿块样强化并其内部卵石状及簇状小环状强化,时间-信号强度曲线呈平台型及流出型.Objective To assess the features of MRI in the breast ductal carcinoma in situ（DCIS）and its micro-invasion. Methods MR data in 30 women with breast DCIS or DCIS with micro-invasion confirmed by pathology were retrospectively reviewed. Re- suits All lesions were enhanced on contrast-enhanced MR imaging. 10 lesions showed mass-like enhancement （33.3%）, and other 20 showed non-mass-like enhancement （66.7%） including heterogeneous internal enhancement in 4 （20%）, homogeneous internal one in 2 （10 %）, clumped and ring one in 11 （55 %） and punctate one in 3 （15%）. In all lesions, time-signal intensity curves （TIC） were demonstrated as typeⅡ and Ⅲ Conclusion Non-mass-like enhancement exhibiting clustered nodules and clustered ring appear- ances is the most characteristic feature of DCIS and DCIS with micro-invasion. Type Ⅱ and type Ⅲ of TIC are the most common types for the lesion.

关 键 词：乳腺 导管原位癌 磁共振成像 

分 类 号：R737.9[医药卫生—肿瘤] R445.2[医药卫生—临床医学]