Dermoid ovarian cysts, also called ovarian teratomas or monster cysts, are a type of cysts on ovary. They can sometimes contain hair, blood, thyroid tissues, bones, eyes and many other fully developed organ strutures. They are also prone to causing the twisting of the ovaries (ovarian torsion). Understanding them is therefore important if you want to get rid of them, prevent them or simply manage some of the ovarian cyst symptoms that they sometimes cause. Here are numbers that can help to shed light on dermoid cysts - mature cystic teratomas