I think that the attitude that if there is a distant met there is nothing to do is just BS!! There are surgical options if it is small, there is RFA to keep in under control while chemo has a chance to go after it, most of the time there is something that can be done. Even if it is enteriing a clinical trial on an experimental drug that may be the difference on which side of the grass you are on, or living for several years more. Will it always be successful? No, but that does not mean that a patient should be written off just because this has moved out of the local area. We have had posters here that have dealt with these issues and are still around. Are they still fighting? Yes, even 2 years out from finding the distant met. But continuing to fight is what it is all about. I bet if it was one of those docs that had a distant met found in a PET, he would be calling everyone that he knows to find some way to deal with it. I don't think he would roll over and play dead.
There are lots of postings archived here about PETs and the false positives that go with them at least 20% of the time. So it is not an absolute test, particularly for cancer. But if you don't find things early you can't resolve them before they get out of control. If something is hot in the PET, then you go and find out why... if it's a false positive you celebrate, if it's not, you dig your heals in and look for options.