How would you treat a patient who has a large DCIS status post mastectomy and implant with extensive positive margins?

I would treat with PMRT to 50 Gy in 25 fractions followed by boost as it looks like the patient has a significant margin positive.

Based on the location of implant (pre pectoral or retro pectoral) contouring and at risk volume is different. The consensus guidelines addresses this: https://www.ncbi.nl...