【摘要】 目的:分析129例乳腺导管内乳头状瘤MRI影像特征,提高对该病的MRI影像认识和诊断水平。方法:回顾性分析2012年4月-2014年6月本院行乳腺MRI检查并经手术病理证实的129例乳腺导管内乳头状瘤的术前MRI影像表现,包括形态学特征、动态增强表现及BI-RADS分类评估。结果:129例确诊病例中,MRI发现有异常强化病变113例,表现为结节肿块型强化病灶86例(66.67%);非肿块强化病灶27例(20.93%);导管扩张不伴异常强化11例(8.52%);另外有5例MRI为阴性。113例强化病变动态增强表现为上升型强化27例(20.93%),平台型强化41例(31.78%),流出型强化45例(34.88%)。MRI评估BI-RADS 1~3类108例,BI-RADS 4类21例。结论:乳腺导管内乳头状瘤的MRI表现具有一定特点,术前MR检查有助于该病的诊断和定位,有较大临床应用价值;BI-RADS MRI评估分类有部分高估的可能。更多还原

【Abstract】 Objective:The aim of the present study is to analyze the MRI features of breast intraductal papilloma,and to improve the diagnostic accuracy.Methods:MRI scan that was carried out in 129 patients with intraductal papilloma with histological confirmation from April 2012 to June 2014 were blindly analyzed retrospectively.MRI findings including morphologic features,enhancement kinetic features(DCE-MRI),and BI-RADS assessment were analyzed.Results:Abnormal enhancement was demonstrated in 113 cases of whom mass enhancement in 86(66.67%),and non-mass enhancement in 27cases(20.93%).Eleven cases(8.52%)only showed as dilated duct;the other 5cases presented as negative on MR imaging.Among the 113 cases with mass enhancement,persistent enhancement in 27cases(20.93%),platform pattern in 41cases(31.78%),and wash-out in the other 45cases(34.88%).108 cases in this study were assessed as BI-RADS 1~3,and 21BI-RADS 4.Conclusion:Intraductal papilloma of the breast have certain characteristics on MR imaging.Preoperative breast MRI scan is helpful for the detection and diagnosis.The BI-RADS MRI assessment categories is likely partially overestimated.更多还原