Thanks for the kind thoughts. We made an appointment for Thursday, the earliest that they could see him.

And, I just wanted to add that the spot is about an inch away from his elbow callous, and not actually on the part he lays on (which is right next to my thumb in the picture). I had it twisted around so that I could take a picture of it. And I guess that's why I am concerned about it. I was doing some thorough searching on him today, and I also found another lump close to his ear, and am doubly freaked out. Thursday can't get hear quick enough.