When my Max was a pup he had a small tumor on his chest it liike like a big zit.... My doc told me it was a puppy tumor and lots of boxers get them well to make a long story short... I made a appt to have it removed and while waiting for the day to come it disapeard.....Talked and shored doc and he said just to keep a eye on the area

Hopefullythis will happen for you and Jasper "Good Luck" Keep us posted