Would you offer whole lung radiation therapy in a head neck patient who relapsed with multiple lung only mets?   

I would definitely not do WLI in this scenario, refer to Med Onc for systemic therapy. Makes perfect sense to consider SBRT or limited resection if there's only limited biopsy proven disease or a persistent lesion despite systemic therapy, as stated in the much more eloquent and detailed answer abov...

I would typically not offer whole lung radiotherapy for metastatic head and neck cancer with lung metastases, as this approach has not been studied in this setting. In addition, whole lung RT may further increase the risk of pneumonitis, as many of these patients are likely to be former or current s...

Really would not do whole lung irradiation for anyone outside of the pediatric indications.