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. In the screening of breast cancer, mammography (MMG) has been an established technique for many decades, and most women older than 40 years in many countries participate in screening activities. Moreover, dynamic contrast-enhanced MR imaging (DCEMRI) in the high-risk group of breast cancer has been reported to improve detectability of cancer in recent studies. The current study evaluated the role of MRM in non palpable breast cancer diagnosed by mammography and US examination. In our study, the overall sensitivity of mammography and MRM was 87.5 %, and 95.9% respectively. The specificity was 20.6 % and 66.6% respectively. MRI was more sensitive in detection of non palpable cancer but with limited specificity due to overlap in features of benign and malignant lesions. In our study, DWI showed higher detectability than MMG in the detection of non-palpable breast cancer in asymptomatic women. A combination of MMG and DWI could therefore be useful in screening for breast cancer in patients who cannot receive contrast medium because of renal dysfunction or previous reactions to contrast agents and will relieve the cost of examination and provide a new screening technique for breast cancer.