Thanks for all of the comments.... My neighbor was watching this buck last year. He hadn't seen him this year, he thought he was dead. He was quite surprised that he was still around. He had the lump then too.... I have been wondering if he sustained an injury when he was younger, and this is how it healed. I have seen deer that have had broadheads in them with a lump like that...... Maybe that is a possibility.....
Here is another strong possibility...... Just found this while researching it....
Lumpy Jaw Whitetails
Here is some other "normal looking" bucks that I have gotten on the camera....
Here is another picture of a different buck....
I just put my new camera out, Moultrie GameSpy M-80XT out... Hopefully, I will get better pictures that aren't blurry......