A member asked:

Can you tell me are most biopsies positive for breast cancer?

5 doctors weighed in across 3 answers

No: Only about 25% (1 in 4) of all breast biopsies done because of a suspicious finding on mammogram and/or ultrasound turn out to be positive for cancer. This is because many small borderline spots are biopsied to make sure they are not cancer. A doctor should be able to give a better estimate for an individual based on the size and appearance of the abnormality, age, and other factors.

Answered 10/27/2018

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No: More biopsies are benign. Hope this helps.

Answered 10/27/2018

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Dr. Michael Gabor answered

Specializes in Diagnostic Radiology

No,: 60-80 percent are usually benign. There is some overlap between the appearance of benign and malignant lesions on imaging.

Answered 10/27/2018

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