Is there a risk of severe radiation toxicity for a patient with paraneoplastic dermatomyositis due to lung cancer?  

For a Stage III NSCLC looking to do definitive chemoRT who required IVIG and high-dose prednisone for paraneoplastic myopathy (mimicking dermatomyositis), how would you counsel the patient on RT risks? Are the risks similar to connective vascular disease/CVD?



Answer from: Radiation Oncologist at Community Practice