THE TERATOMA: GROSSEST THING EVER
A teratoma is horrible even for a tumor. It is the type of tumor that even other tumors try to avoid on the street. Other tumors don't go down dark alleyways at night because they're afraid they will run into a teratoma.
We all know that cancer is, basically, cells dividing out of control, right? With the teratoma, cells don't just go out of control, they bounce off the walls and smear their poop all over the padded room. These types of tumors, no matter where they pop up on the body, have been known to contain hair, half formed copies of internal organs, skin, muscle, bones and, in some cases... teeth!
The good news is, because they are usually encased, teratomas are often benign... other than the fact that it leaves you with the knowledge that it was once inside you.