How would you treat completed resected rectosigmoid recurrence of endometrial adenocarcinoma?

We have equally treated with chemotherapy for recurrence followed by involved site with RT in a few cases for isolated extended pelvic relapse. Overall outcome has been mixed.

This is technically stage IVB as presumably, the tumor had to go across the peritoneum to seed the external surface of the rectum, which then likely grew into the rectal mucosa. Unless, it is perhaps in a focus of endometriosis, which would likely still be staged similarly.

Adjuvant chemotherapy alo...