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Breast Cancer

Breast MRI results



Hello, I have just had a mammo, ultrasound and MRI. I was told that both my brests mri results are a catagory 4b.Does this mean I have cancer? If so, is it in early stages? what is the survival rate? I was told I need to see a breast surgeon immediately. how concerned should I be?


A Category 4 interpretation of a breast film means that there is between a 20-40% chance of cancer.  This still means that there is up to an 80% chance that it is benign.  Also important, is that a MRI of the breast can overestimate how concerning a mass is by 30%. 

The only way to figure out if this is a cancer or not is to see the surgeon and get a biopsy.

For more information:

Go to the Breast Cancer health topic, where you can:

Response by:

Jean T Stevenson, MD, FACS Jean T Stevenson, MD, FACS
Associate Professor of Surgery
School of Medicine
Case Western Reserve University