What treatment volumes and dose do you use for postoperative soft tissue sarcoma of the scalp with negative margins?

While there is institutional variation in practice, our standard has been to extend extremity/trunk paradigms to the head and neck region, including the scalp. For negative margins for a scalp sarcoma, we typically use margins of 3-3.5 cm for CTV for the first course and then 1.5-2 cm CTV for the co...