Hey doctor, I have a bump about the size of a quarter that appear near my jaw line and cheek. It is not tender, and has been there for a month. I was playing football and after I was punch in the mouth, i notice the bump a week later. It is not painful, but when I put pressure on it, there is a pain. Do you know what it is? I have a clue but I want to be certain before I visit ENT next week.