@jlgc

You're asking some same questions I have asked oncologist about.

I asked if going to do a MRI (which I insisted on) then why do mammograms. He said they each have their own purpose and combination is best. I am 5 years out from treatment and now alternate every 6 months between MRI and Mammograms.

At a presentation by one of Mayo's Breast Clinic oncologist, I asked about MRI vs Molecular breast imaging and she recommends MRI for dense breast.

I am sure some of the guidelines will vary based on individuals.