ABSTRACT
Breast imaging plays an integral role in breast cancer screening and diag nosis. Screening mammography is performed in an asymptomatic woman in order to detect clinically occult breast carcinoma. Diagnostic mammogra phy is performed to evaluate a questioned abnormality, detected either on clinical evaluation or on mammographic screening. This section will review screening and diagnostic mammography, the role o f additional mammo graphic views and other imaging modalities, the mammogram report using the term inology o f the Breast Im aging Reporting and Data System (BI-RADS™ ) lexicon,1 needle localization and image-guided percutaneous breast biopsy.