Fall guy
5 year old buck +
I had same thing with an older deer. Antler growth like that is usually involves injury or maybe even some kind of joint issue on opposite side. Note the right front leg on your pic in 2015.
Here is very old deer same issue. No injury obvious in 2010
Now with another year and better angle begins to show.
Better angle

Here is very old deer same issue. No injury obvious in 2010

Now with another year and better angle begins to show.

Better angle
