What is bi-rads 4 on a mammogram?

BI-RADS stands for the Breast Imaging Reporting and Data System, which is a standardized system used by radiologists to describe and report mammogram findings.

A BI-RADS 4 category on a mammogram indicates that there is a suspicious abnormality that needs further evaluation. The abnormality may be a mass, calcifications, or other findings that the radiologist deems worthy of additional diagnostic work-up.

Here's a breakdown of the BI-RADS 4 category:

BI-RADS 4A: This subcategory indicates a low suspicion of malignancy, meaning the abnormality appears to have less than a 2% chance of being cancerous. However, further evaluation is still recommended.

BI-RADS 4B: This subcategory indicates a moderate suspicion of malignancy, with the abnormality having a 2-10% chance of being cancerous. Additional imaging, such as ultrasound or magnetic resonance imaging (MRI), may be recommended for better assessment.

BI-RADS 4C: This subcategory suggests an intermediate suspicion of malignancy, with a 10-50% chance of cancer. A biopsy is typically recommended to determine the nature of the abnormality and confirm or rule out the presence of cancer.

It's important to note that a BI-RADS 4 category does not necessarily mean cancer is present. It indicates the need for further investigation to determine the nature of the abnormality and rule out any potential malignancy. Follow-up imaging studies or a biopsy may be recommended based on the specifics of the case.

If you receive a BI-RADS 4 result, it's essential to discuss the findings with your healthcare provider, including the radiologist and your primary care physician or OB-GYN. They can provide more information, address your concerns, and guide you through the necessary steps for appropriate diagnosis and management.