Thirty years ago, I had my first cancer. When Mayo-Jax told me that I had cancer again, I said that was impossible because people don't get cancer again and certainly not in a different part of their body. I little research told me that it is quite common for people to develop more tumors in another part of the body.

You mentioned that you have a 4mm in your upper right lobe that looks like scar tissue. I had two masses in my right lung that also looked like scar tissue but the biopsy proved that they were active tumors. Surgery took care of that for me with followup radiation/chemo but I still have a sub-microscopic metatastic tumor that is butting up against my heart.

Of course, your situation may be different.