@colleenyoung , than you for the link to the blog post. it does contain some useful information but, overall, it appears to be a blatant attempt to get me to sign up for an unsolicited second opinion when I haven't even had a first opinion, yet. I'm sure this second opinion is accompanied by a hefty fee which I doubt is covered by Medicare.
After having a baseball sized tumor removed and undergoing chemo two years ago, of course I'm concerned about my PET scan results. But I don't appreciate the attempt to prey on the worried for an unsolicited "second opinion" from some unknown internet doctor. Thanks but no thanks.