I have stage IV nsclc dx December 2, 2011. Started Tarceva June 2012. Last scan(and several before) show no activity in previous bone mets and only faint FDG uptake within the speculated lesion in posterior right upper lobe abutting fissure. SUV 2.1,1.5, x 1.1 cm . However, my CEA level was 13.3 on the blood test. My oncologist feels thee might be something brewing that we cannot see yet. The CEA level has been increasing slowly over the last year, yet my scans remain stable. Is there any possibility that targeted radiation to the lesion in my lung would make sense at this time? Knock out all the 'active' cancer since the cancer has not yet spread beyond my bones. I do not have any mets in any organs and my brain MRI is clean. Thank you for your time.