Breast cancer is the most common malignant tumor among women. The purpose of all diagnostic modalities in breast cancer is early detection and proper diagnosis, which has its major impact on further management and prognosis.Dual Energy CEDM proved to have a higher diagnostic accuracy for the detection of breast carcinoma compared with mammography alone and with mammography interpreted in association with ultrasoundDW MRI in the breast is a new imaging technique. It has the advantage that It is simple, fast and non invasive with no need to use contrast media and it provides information that reflects tissue cellularity which can be used in diagnosis and evaluation of breast lesions .In our study using combined qualitative analysis of DWIs and quantitative analysis of ADC values we concluded that results of DW MRI are approaching that of contrast enhanced MRI and better than Dual– energy CEDM in diagnosis of breast lesions DW MR imaging can be used as a reasonable alternative technique to contrast-enhanced imaging