非肿块型乳腺单纯性导管内癌声像图特征及病理学相关分析

Sonographic findings and pathological features of non-mass pure ductal carcinoma in situ

目的探讨非肿块型乳腺单纯性导管内癌声像图特征,并行病理学相关分析。方法收集2014年9月至2016年6月32例非肿块型乳腺单纯性导管内癌的声像图,分析其病灶的边缘、内部回声、局部腺体增生、微钙化及病灶内血流阻力指数(RI)等,同时行病理学分析。结果 32例非肿块型乳腺单纯性导管内癌中常表现为乳腺腺体局部增生明显,内回声强弱不等,如"豹纹征"或"斑马纹征",彩色多普勒可见病灶内较丰富的血流信号,RI>0.7,偶可见单纯乳导管扩张,病灶内偶可见微钙化灶。非肿块型乳腺单纯性导管内癌中高级别导管内癌占多数。结论非肿块型乳腺单纯性导管内癌常表现为乳腺腺体局部增生明显,内回声强弱不等;病理学类型常为高级别导管内癌;彩色多普勒及RI的测量可以辅助诊断非肿块型乳腺单纯性导管内癌。

Objective To explore the characteristic sonographic findings and pathological features of non-mass pure ductal carcinoma in situ（ DCIS）. Methods The sonographic findings of 32 cases of non-mass pure DCIS treated during Sep. 2014 and Jun. 2016 were retrospectively analyzed. The edge of the lesion,internal echo,local gland hyperplasia,microcalcification and blood flowresistance index（ RI） were reviewed. Results The major manifestations included focal gland hyperplasia and uneven internal echo intensity. Color Doppler showed rich blood flowaround the lesions,with RI 0. 7. Mammoductal ectasis and microcalcifications could be observed. Most DCIS were of high grade. Conclusion Non-mass pure DCIS manifests with focal gland hyperplasia disorders and uneven internal echo intensity. Most DCISs are of high pathological grade. Color Doppler and detection of RI can be helpful in the diagnosis of DCIS.