What are you posterior field borders for endometrial and cervical cancer 3DCRT plans?
Some classic references recommend the coverage of the entirety of the sacrum but the volume delineation guidelines for both seem to only cover the most proximal portion of the pre-sacral nodes (ant to S2/3 jxn). Are there references to guide this decision?
1 Answer
Mednet MemberInvited Expert
Radiation Oncology · St. Luke’s Cancer Center
Answered on
The idea behind placing the posterior border 5 mm behind the sacrum on the lateral fields is to include the presacral fossa where the presacral nodes reside. I recommend covering the presacral nodes for all definitive cervix patients, both for prescral node coverage as well as to cover the parametri...
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