@ramidimitri This may be of interest to you https://www.cancer.gov/news-events/cancer-currents-blog/2019/endometrial-cancer-chemotherapy-without-radiation
I have advanced endometrial cancer (stage 3C), which, according to the article, explains why I didn't receive radiation, just chemo. Also, I have already had my life-time's limit of pelvic radiation to get rid of anal cancer.
The radiation has had lasting effects on my vagina--stenosis--which makes it virtually impossible for doctors to give me an internal exam without knocking me out.
If your wife has a non-aggressive form of endometrial cancer, then you might want to consider radiation, again, according to the article.