I would ask what the criteria is for a PET scan to evaluate whether the metabolic data indicates malignancy. It is true that 10mm likely cannot be biopsied in a traditional way. But there are options. I watched one nervously from 6mm until it reached 14. At that point they did surgery and took the whole lobe. Given it was located on the outer edge of my lung, a wedge removal might have been done earlier with much less protracted recovery.
But more than likely they will justify removing it and biopsy it during surgery as they did me.