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Post-Op Endometrial RT Contouring
•
CTV-T
= Upper 3cm of vaginal vault and parametrium.
•
PTV-T
= CTV + 12mm in all directions except inferiorly and
laterally where 7mm is sufficient.
•
CTV-N
= (as per Taylor guidelines) includes obturator nodes,
external iliac lymph nodes, internal iliac lymph nodes.
The common iliac nodes may be included for node
positive patients (Stage IIIC1). The para-aortic nodes
may be included for those with Stage IIIC2 tumours.
•
PTV-N
= CTV + 7mm margin.
•
PTV final = PTV-T + PTV-N