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Reviewed by the Faculty of Harvard Medical School

Breast Imaging Reporting and Data System (BIRADS)

The American College of Radiology (ACR) has established a uniform way for radiologists to describe mammogram findings. The system, called BI-RADS, includes seven standardized categories, or levels. Each BI-RADS category has a follow-up plan associated with it to help radiologists and other physicians best manage a patient's care:

BIRADS Category What It Means Follow Up
0 More information is needed to give a final mammogram report. More imaging is needed before a category can be assigned.
1 Your mammogram is normal. Continue annual screening mammograms (for women over age 40).
2 Your mammogram shows benign (noncancerous) findings. Continue annual screening mammograms (for women over age 40).
3 Your mammogram findings are probably benign. A 6-month follow-up mammogram is recommended.
4 Your mammogram shows a suspicious abnormality. You may need biopsy.
5 Your mammogram shows a change that is highly suggestive of cancer. A biopsy is necessary.
6 Your mammogram shows a cancer that has been proven by biopsy. A biopsy confirms presence of cancer before treatment begins.

Aetna Members: If you would like more information about breast cancer and breast cancer prevention, please call (888) 322 8742.

Miembros de Aetna: Si desean mayor información sobre el cáncer de seno y sobre su prevención por favor llame al (888) 322 8742.


Last updated: March 15, 2011




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