Today I got another PET scan to assess the effectiveness of the previous two chemotherapy treatments. The results look reassuring. I have not yet heard the official word from the radiologist, but it is obvious even to my unprofessional eye that chemo has had an effect. The major tumor in my right lung is no longer visible, and the other smaller tumors have decreased in brightness.
The pictures below show the scans from the initial diagnosis on the left alongside today's scans on the right.
These results mean that I will likely stay with the same set of chemo drugs for one or two more rounds. After that, I will probably get another scan, then switch to some alternate drugs for as long as it takes for the tumors to disappear.