To analyze malignant signs of the breast cancer with dynamic contrast enhancement MRI

SHI Feng; GAO Yang; NIU Guangming

Abstract：Objective To investigate malignant signs of the breast cancer by dynamic contrast enhancement MRI .Methods 48 breast cancer patients (54 lesions) who were proved by pathology were analyzed retrospectively ,observed the signs of lesions by dynamic contrast enhancement , recorded the contrast enhanced forms , enhancement patterns , abnormal dilated or normal blood vessels in pericancerous and the type of time-signal intensity curve .Results 1) The morphology:7 cases that shapes are regular (13.0%), 47 cases that shapes are not regular (87.0%), 40 cases with burr sign or the sharp angle sign around (74.1%), 29 cases with lobulated sign on the edge (53.7%);2) The enhanced patterns:17 cases were uniformly enhanced (31.5%), 28 ca-ses were annular and centripetal enhanced patterns (51.9%), 6 cases were duct-shape enhancement (11.1%), and 3 cases were clustered enhancement (5.5%);3) The type of time-signal intensity curve:28 cases were outflowed type (51.9%), 24 ca-ses were flatbed type (44.4%), 2 cases were inflowed type (3.7%);4) Other malignant signs:13 cases had lymphadenectasis (24.1%), 9 cases had inverted nipples (18.7%), 8 cases had incrassated skins near Breast lumps (14.8%), 6 cases were that there are abnormally expanded blood vessels around the mass (11.1%).Conclusion The dynamic contrast enhancement MRI can show the morphological characteristics and the hemodynamic characteristics of the lesions at the same time , and it has very important referencing value for the diagnosis of breast cancer .