When do you include the presacral nodes in post-operative XRT of endometrial cancer?

Cervical stromal invasion (pT2) or for definitive radiation for nodal or vaginal recurrence when treating the whole pelvis.

The new Gyn postop atlas recommends if in including presacral to treat down to the pyriformis muscle. Historically, RTOG/GOG recommended S1-S3. PORTEC-3 used a 10mm in front of ...