How do you define your post-operative treatment volumes for a patient with a resected high-grade soft tissue sarcoma of the soft tissues of the upper back?  

Thank you for this question. My concern with the lack of pre-surgical imaging is that there is not a good delineation of tumor extent. In scenarios of non-oncologic resection or resection without prior imaging, one should be wary of this. As such, my recommendation would be to be more generous wi...