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A 45-year-old female asked:

My mammogram report results came back birads 4 but my sonogram report came back negative so why does my doctor recommend a breast biopsy?

4 doctor answers13 doctors weighed in
Dr. Haluk Tezcan
Medical Oncology 36 years experience
Because ...: If a suspicious lesion is noted on mammography an us is obtained. This allows for better definition of the lesion in the breast. However, a "negative" us does not rule out an underlying problem and the correct next step is to proceed with your physicians recommendation, in this case a biopsy. None of the imaging techniques are perfect, the final decision is based on all the information.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Jennifer Giltnane
Pathology 14 years experience
Better safe: Different types of breast imaging can be better or worse at finding certain abnormalities. A biorads 4 suggests that the radiologist cannot completely exclude cancer; however, benign lesions can also have this score. Consider a second opinion if you are not confident that a biopsy is necessary.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Daniel Para
General Surgery 31 years experience
Get it done!: A birads-4 mammogram describes a finding consistent with possible cancer in the breast. The lesion may be a suspicious cluster of microcalcifications which would not be necessarily seen as a mass on ultrasound. It is important to have the area biopsied.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Michael Gabor
Diagnostic Radiology 34 years experience
Mammo and : ultrasound are complementary tests. Some abnormalities may be seen on one, but not the other. So a suspicious mammo finding that cannot be seen on ultrasound is still a suspicious mammo finding, and likely needs biopsy.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 13, 2019

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