What is a BI-RADS score?

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BI-RADS is the system by which screening mammograms are read and coded. The radiologist reads the mammogram and codes it using BI-RADS. A BI-RADS 0 mammogram is incomplete and requires further radiographic views or ultrasound. A BI-RADS 1 mammogram is completely normal and requires no further work-up. A BI-RADS 2 reading is typically benign 98% of the time. A Bi-RADS 3 usually requires follow-up films at six months to assess any changes. If the mammogram remains stable, then no biopsy is required.

A biopsy is required if your mammogram receives a BI-RADS 4 reading. BI-RADS 4 means there is a 20-30% chance of cancer in the abnormality. The mammogram can suggest cancer but not diagnose cancer. Removal of tissue from the area of abnormality and then pathologic examination of the tissue is required for diagnosis.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.