From the Guidelines
The Breast Imaging-Reporting and Data System (BI-RADS) is a standardized system used to categorize breast imaging findings, with categories ranging from 0 (incomplete assessment) to 6 (known biopsy-proven malignancy), to help guide clinical decision-making and ensure timely and appropriate management of breast lesions. The BI-RADS categories are assigned based on the cumulative findings of multiple imaging modalities, such as mammography and ultrasonography 1. The categories are as follows:
- Category 0: Needs Additional Imaging Evaluation and/or Prior Mammograms for Comparison
- Category 1: Negative
- Category 2: Benign Findings
- Category 3: Probably Benign Findings; Short-Interval Follow-up Suggested
- Category 4: Suspicious Abnormality; Biopsy Should Be Considered
- Category 5: Highly Suggestive of Malignancy; Appropriate Action Should Be Taken
- Category 6: Known Biopsy-Proven Malignancy; Appropriate Action Should Be Taken The overall BI-RADS assessment category is based on the most worrisome findings present, and the risk of malignancy increases with higher category numbers 1. I recommend using the BI-RADS system to categorize breast imaging findings, as it provides a standardized and evidence-based approach to guiding clinical decision-making and ensuring timely and appropriate management of breast lesions. The use of BI-RADS categories can help reduce morbidity and mortality by ensuring that breast lesions are accurately diagnosed and treated in a timely manner 1.