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.