The rationale for monitoring/constraining the ipsilateral lung is to avoid symptomatic radiation pneumonitis. That being said, I don't know if I have ever seen it in a patient where we are not treating nodes.Our official scorecard for whole breast conventional fractionation (40-42.56 Gy/15-16 fx) st...

We have chosen to follow the constraints from RTOG 10-05 (Accelerated WBRT  w/ concurrent boost vs Standard WBRT w/ sequential boost). VGy16 15% (acceptable deviation 20%); V8Gy 35%, V4Gy 50% for breast alone. 30%; 45%; 60% for comprehensive. And, like Dr. @Simul Parikh, have had very few ca...