Would you offer SBRT for primary pulmonary adenoid cystic carcinoma in a patient who was medically not a surgical candidate?  

Obviously, a data-free space given the rarity of this disease state. I have routinely utilized SBRT for oligoprogressive lung metastases from adenoid cystic carcinoma with excellent safety and efficacy, and think this is readily extrapolated to a primary ACC of the lung. There are very limited serie...