Apparantly there is a rare disease that causes tree like growths to sprout from the body.

I saw this on Something Awful a while ago. It's weird and slightly disturbing.

There's a rock man as well, but I can't find him.

I wonder what type of tree he's becoming. I'm thinking a fruit tree. Orange or lemon?

At least he's getting treatment, though.

One of the first things ever put into the WTH forum... Sub found some pics of this Eastern European fellow who had this condition. The things come off. I can't remember how exactly, but you used peroxide, or something like that, and then buff and trim them off, since the things themselves don't have nerves so it doesn't hurt
-It hurts more to have them than get rid of them...

Tree, rock, whatever. They're just descriptive terms for the same condition. Nasty.
-----------------------------------

-Can't find anything about it really, but it very likley could be a strange for of the Human papillomavirus [en.wikipedia.org], which causes warts, among other things.

Especially seeing as what a species of that virus type does to rabbits- real life Jackalopes [ww2.lafayette.edu]

If that's the case, Vitamin A won't help that poor bugger much.

Yep, I was right:
He's basically just amazingly warty.

The virus adapted to his body like that... Probably because of some mutation that causes his immune system not to be able to fight it, or makes him a wonderful host for some other reason. So, like the rabbits, it affects cells and grows like a cancer all over his skin. They can be removed and his body is just fine underneath them, but it's hard and painful work. And they have to be treated so they won't just grow back again.