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Topics:
Radiation Oncology • Neuro-Oncology
What dose and volumes do you use for incompletely resected WHO grade II meningiomas with brain invasion?
Several articles report results with 0.5 -1 cm margins, and have suggested that with improved imaging and treatment planning, smaller margins such as those used by the EORTC are also appropriate for GTV to CTV expansion. The 2 cm expansions used in RTOG 0539 may result in much larger volumes of normal brain exposed to radiation. Is it therefore reasonable to treat patients with larger Simpson Grade 4, subtotally resected Grade II meningioma, with a 1 cm GTV to CTV expansion?
Articles:
Answer from: Radiation Oncologist at Academic Institution
In general, I try to follow RTOG 0539 contouring guidelines. That being said, I have at times reduced my margins to 1 cm even in subtotally resection grade II meningiomas. As the articles suggested, it appears to be a reasonable option. Would be nice to do a survey on practice patterns/margins from ...
Thank you both!!
You should do whatever Dr. @C. Leland Rogers ...
Yes, I concur.
How would you treat a patient who received 5 Gy x ...