How would you manage lung adenocarcinoma in a patient with an index lesion requiring treatment, who has additional slowly evolving GGOs/subsolid nodules?  

In our institution, when dealing with the patient who has multiple GGOs, treatment is usually initiated when serial CT imaging shows growth AND development of solid features in a given lesion. We attempt to biopsy if not medically contraindicated and do formal staging including PET and EBUS staging,...