pun intended
bumping this topic up hoping for updates on everyone's lumps. Michael--I am sorry to hear of the loss of your father. Kindest thoughts and wishes to you.
just_this_once, that's a fun story but most of us are a little more "with it" than that, I hope! I studied anatomy in art school, and Mom4Life and Hudson are obviously well-informed. What caused us to go looking for info was the sensation that something was *unusual*--often occurring over a short time--when you're 40, you'll see what I mean! Our bodies that we knew so well start changing in nutty ways. Think you're scared at age 22?? (Oh wait... I remember fearing mortality at age 22 as well... never mind!)
In my case I was drying off in the locker room and startled out of my wits by my reflection in the mirror showing the xyphoid bump--"what IS THAT?" Looking down I could see it poking out in a way it's never done. I spend a lot of time admiring myself in the mirror so I can guarantee this

A couple weeks later I overheard a friend of mine age 68, same locker room, talking about a lump she had just had checked out--you guessed it! She said hers is benign and consists only of cartilage. May we all be so lucky.
Hope to hear from everyone how they are doing. pdpolaski what was the result of your PET scan and biopsy? best wishes