Hi and welcome to the message board. I tried to reply earlier, but for some reason, my reply did not go through. Let me try again.
I think that with your history of breast cancer, this puts you at a higher risk for ovarian cancer. Did you have a transvaginal ultrasound, or a regular pelvic ultrasound? I have not heard of an MRI of the uterus and ovaries.
As for having everything surgically removed, there are two ways to look at it. One, you can have the surgery, and if the frozen sections are benign, then the doctor can leave everything where it belongs. Or, the other option is to go ahead and have everything surgically removed. Even if you don't have anything cancerous, removing the uterus, cervix, ovaries, etc, puts you at a lower risk for developing gynecological cancer. Removal of the ovaries does not guarantee that you will not get a form of ovarian cancer (called peritoneal cancer). Have you finished menopause?
Tell your doctor that you want a tumor marker run. For ovarian cancer, there is the CA 125. It is not a diagnostic tool, but it is suggested in helping to diagnose ovarian cancer.
Please let me know if I can be of any further help. I look forward to hearing from you again. Regards, Glynne