I just joined and seen the post, and reminded me of my visit at the begining of the month. I had my thymus gland removed in 2004 and was told they got it all. Then I had a scan done a little while ago and it shows that I still have some of it left. My specialist told me that it was possible that the surgen could have missed some of it because they don't grow in 1 solid gland. There could be little bits growing to the side or what ever and not be seen as was my case. Now I'm waiting to hear from the surgen again to see if he wants to remove the rest.