I am in the school of thought with @sequoia , why wait until it is invasive carcinoma. If it is already considered DCIS, this is carcinoma it just hasn’t invaded surrounding tissue yet.
If I were like @meme5 , and not calling it DCIS, and a history of surgical complications I might feel differently.
My hindsight is, that if I was doing it all over again and diagnosed today with DCIS, and knew what I know, that icky bit would be gone as fast as I could get it scheduled.
By all means I would get a second opinion, preferably at a cancer center you trust.
Here is Mayo Clinic’s DCIS page.
https://www.mayoclinic.org/diseases-conditions/dcis/symptoms-causes/syc-20371889
Is there a good breast clinic or cancer near you?

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