_1630698188 1630698188 brea akaviani@archbreastcancer.com Farname Inc Archives of Breast Cancer Arch Breast Cancer 2383-0433 04 15 2021 Marwa Makboul Shimaa Farghaly Murad A Jabir Ramy A Hassan Mahmoud Refaat Shehata Background: Breast MRI has demonstrated excellent sensitivity in determining the extent of breast cancer and occult malignancy. This study aimed to evaluate the added value of breast MRI compared to mammography and ultrasonography in surgical decision.Methods: A cross-sectional study was conducted on 84 female patients with newly diagnosed breast cancer by ultrasonography and mammography where conservative breast surgery was initially considered, and then bilateral breast MRI was performed and the multidisciplinary decision was revised. The data was analyzed to determine the additional value of breast MRI in treatment planning.Results: Eighty-four patients were included of whom 44 (52.4%) patients had additional findings on MRI. The treatment plan was changed after the second ultrasonography and histopathology in 44 patients (52.4%) with a remarkable increase in the rate of modified radical mastectomy after MRI. Conclusion: Preoperative breast MRI has great value in defining the surgical decision in patients with early breast cancer. 04 15 2021 109 114 http://creativecommons.org/licenses/by-nc/4.0 10.32768/abc.202182109-114 https://www.archbreastcancer.com/index.php/abc/article/view/352 https://www.archbreastcancer.com/index.php/abc/article/download/352/480 https://www.archbreastcancer.com/index.php/abc/article/download/352/480