BI-RADS fifth edition: A summary of changes.

The Breast Imaging Reporting and Data System (BI-RADS) is a standardized system of reporting breast pathology as seen on mammogram, ultrasound, and magnetic resonance imaging. It encourages consistency between reports and facilitates clear communication between the radiologist and other physicians by providing a lexicon of descriptors, a reporting structure that relates assessment categories to management recommendations, and a framework for data collection and auditing. This article highlights the changes made to the BI-RADS atlas 5th edition by comparison with its predecessor, provide a useful resource for a radiologist attempting to review the recent changes to the new edition, and serve as a quick reference to those who have previously become familiar with the material.