Go find an opinion from a surgical oncologist at an NCI designated Comprehensive Cancer Center. That would be my general advice. Google "NCI Cancer Center" and you will find the closest one to you. There will be surgical oncologists at virtually all of these.
In some cases, if they do additional tests, it may be beyond surgery. In that case a medical oncologist or, in some cases, a radiation oncologist, who specializes in sarcomas would be helpful. Sarcomas are rare, so the main thing is to find a center that specializes in it. Most of the time, you will find the best resources at an NCI Cancer Center.
Regards and best wishes,
Dr V
www.gyncancerdoctor.com