A man growing into a tree... Or so it looks like. He has a rare illness called Epidermodysplasia verruciformis. It is a virus that causes growth of huge "moles" resulting in tree-like extensions.
Could this illness be where those myths about humans turning into trees are inspired from?.... ( like the ancient Greek myth of Daphne).
Although I guess human imagination could have made that up easily anyways.
You can see some videos about him: