What is the appropriate radiation volume for a stage III, group III unresectable embryonal rhabdomyosarcoma originating from the bladder?

For bladder/prostate or pelvic tumors that displaced a significant amount of bowel which has then returned to its normal anatomic position after chemotherapy, GTV1 and CTV1 will be defined by the prechemotherapy extent of tumor excluding the component that is now normal intra-abdominal components (i...