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Breast Cancer

MRI for breast screening

07/06/2010

Question:

My mother and grandmother both had breast cancer at 65 (grandmother died of this). My mamogram shows punctate calcifications, no clusters, and moderately dense breasts. Should I be doing screening MRI besides yearly mamograms? I am 51.

Answer:

You do not need screening MRI.  The current recommendations for annual mri is a lifetime risk, based on family history, of 20-25% or higher.  Based on your family history and using the Claus model to estimate your risk, your risk of getting breast cancer by the age of 79 is about 15%.  Your risk to age 49 was about 4%, so your residual risk is about 11% between now and age 79.  The average woman faces a 10-12% lifetime risk of breast cancer. 

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Response by:

Doreen M Agnese, MD Doreen M Agnese, MD
Clinical Associate Professor of Surgery
College of Medicine
The Ohio State University