What is the largest non-spine bone metastasis you would be willing to treat with SBRT?

Is your size limit a function of OAR dose? If yes, is there a volume of bone that you will not exceed regardless of no dose-limiting OARs?

Answer from: Radiation Oncologist at Academic Institution

The size or volume per se is not a limiting factor for SBRT. Doses to OAR (parallel and serial organs) are the most important factor. I have treated large bone metastases with ablative radiotherapy (SBRT or hypofractionated IGRT) without issues.

Comments

Radiation Oncologist at Memorial Sloan Kettering Cancer Center
In agreeing with @Simon S. Lo, it's also useful to...

Radiation Oncologist at University of Washington School of Medicine
I totally agree with @Yoshiya Yamada.

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