How stressful that they need to redo the simulation! But if you can tolerate the simulation, the treatment is quite similar. And VB may well be your best option for an effective treatment. If it were me, I would probably also ask whether surgery is a possibility.

It looks like the pathologist thinks the polyp they removed is the same low grade endometrial cancer as your original tumor. The polyp, and almost certainly the original tumor also, is MMR proficient (that's what "intact nuclear expression" for MLH1, MSH2, MSH6, and PMS2 means), which is not the result you would hope for. (MMR deficient tumors tend to be very sensitive to immunotherapy drugs).

Good luck with your appointment.