Imaging features of bilateral breast abnormalities

There are various-causes, broad-spectrum, heterogeneous groups with various biologic profiles, and imaging features of bilateral breast abnormalities. As imaging modalities continue to be developed, the ability to detect subtle or tiny abnormalities is improved in the contralateral breast of patients already diagnosed with unilateral breast disease, especially in breast cancer patients when using magnetic resonance imaging. Furthermore, some diseases involved bilateral breast, simultaneously. The purpose of this review is to describe imaging features of the bilateral breast abnormalities-common diseases and simultaneously involving diseases. In order to provide adequate treatment and to prevent misdiagnosis, a complete understanding of the imaging and clinical features of bilateral breast abnormalities of common diseases as well as those of simultaneously involving diseases is necessary.