For patients receiving TNT for locally advanced rectal cancer who have received chemotherapy prior to chemoradiotherapy, do you treat the pre or post-chemotherapy volume for the boost, especially in patients who have had a near complete response?

Answer from: Radiation Oncologist at Community Practice

I base my boost volume upon the pre-chemotherapy extent of gross disease. Times I have selectively deviated from this are almost exclusively related to unfavorable normal tissue anatomy (i.e., significant volume small bowel deep in the pelvis) such that covering the initial extent in the boost volum...

Comments

Radiation Oncologist at Texas Oncology-Arlington Cancer Center North
Do you boost initially involved mesorectal/locoreg...

Radiation Oncologist at Mayo Clinic School of Medicine
Yes, I typically do.

Radiation Oncologist at Cape Oncology
Do you use short or long course? And why?

Radiation Oncologist at Mayo Clinic School of Medicine
I use 5 Gy x 5 (i.e. short course) in about 60-70%...

Radiation Oncologist at Cape Oncology
Thank you.

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For patients receiving TNT for locally advanced rectal cancer who have received chemotherapy prior to chemoradiotherapy, do you treat the pre or post-chemotherapy volume for the boost, especially in patients who have had a near complete response?

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