ridges in breast

my doctor through a breast exam has found ridges in the left breast I have had two mamograms and an ultrasound which have all come back negative  my doctor is now insisting I see a breast surgeon. Have you heard of this problem and could this still indicate possible breast cancer?

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Dear Jenook:  In my experience, I have not heard breast lumps or areas of concern referred to as ridges.  However, this is just a word.  Since your mammogram and ultrasound are both negative, the next expert to evaluate the