====== Mature teratoma ======

A mature [[teratoma]] is a grade 0 teratoma. Mature teratomas are highly variable in form and [[histology]], and may be solid, cystic, or a combination of solid and cystic. A mature teratoma often contains several different types of tissue such as [[skin]], [[muscle]], and [[bone]]. Skin may surround a cyst and grow abundant hair (see [[dermoid cyst]]). Mature teratomas generally are benign; malignant mature teratomas are of several distinct types.