Now, there are two types of teratomas, the first are mature cystic teratomas, which are the most common ovarian tumors in young women and are formed from tissue that comes from any of the three germ layers.

第1种是成熟的囊性畸胎瘤，是年轻女性中最常见的卵巢肿瘤，由三胚层中的任一层组织形成。