不同年龄组肿块型乳腺浸润性导管癌的增强MRI影像特征

Imaging features of mass type invasive ductal breast cancer on dynamic MR imaging between different age groups

目的探讨不同年龄肿块型乳腺浸润性导管癌的MRI的影像表现。材料与方法回顾性分析陆军总医院经病理学证实的乳腺浸润性导管癌术前MRI影像表现,将肿块型强化患者纳入研究。分析肿块型乳腺癌的发病位置、形态特征及强化方式。结果入组患者共65例,青年组18例,中老年组47例。青年组(≤40岁)表现边界不清楚的9例,占50%,中老年组(>40岁)边界不清者9例,占19.1%,两者差别具有统计学意义(P<0.05)。两组之间病理分级、大小、形状、边缘是否分叶及毛刺、TIC类型均无显著性差异(P>0.05)。结论青年肿块型乳腺浸润性导管癌表现为边界不清者比例高于中老年患者,可能提示其具有更强的侵袭性及转移能力,预后较差。

Objective：To investigate the imaging features of mass type invasive ductal breast cancer on dynamic MR imaging between different age groups.Materials and Methods：Consecutive cases of pathologic proven invasive ductal breast carcinoma of PLA army general hospital were reviewed retrospectively. Those cases which showed non-mass-like enhancement were excluded. The location, morphological features and the time signal intensity curve （TIC） type of the lesions were evaluated.Results：Sixty-ifve patients were enrolled in our study, the young group including 18 cases and the older group 47. The young group was more likely to display an undistinguished boundary （50%） than the older group （19.1%）. There were no signiifcant differences in other features, such as the location, size, shape and TIC type of the mass lesions. Conclusions：Invasive ductal breast cancer which showed mass like enhancement in young women was associated with more undistinguished boundary than the older group. The features may be suggestive of more aggressive, metastatic and a poorer prognosis of breast cancer in young women.