The first, are teratomas, terato means monster and oma is a tumor.

第一种是胎瘤，terat-的意思是怪物，-oma是肿瘤。

Some originate from ovarian germ cells, such as mature cystic teratomas, also called dermoid cysts.

有的起源于卵巢生殖细胞，例如的囊性胎瘤，又名皮样囊肿。

The other type are immature teratomas, and they develop specifically from neuroectoderm cells - which come from the ectoderm layer.

二种是未胎瘤，专门由神外胚层细胞发，自外胚层。

On the other hand, neoplastic cysts include endometriomas, serous and mucinous cystadenomas, and mature cystic teratomas, as well as malignant ovarian tumors.

另一种是赘生性囊肿，包括子宫内膜异位症囊肿、浆液性和黏液性囊腺瘤、囊性胎瘤，以及恶性肿瘤。

Mature cystic teratomas are the most common ovarian tumors in young women and usually contain a heterogeneous mix of mature tissues that come from two or three of the germ cell layers.

囊性胎瘤是年轻女性中最常见的卵巢肿瘤，内容物常为多种组织的混合物，分别由两个或三个胚层的生殖细胞分化。

So teratomas are monster tumors, and they are called that because they contain all different types of tissues, including hair, eyes, teeth, bone and neurons - kind of like a Frankenstein that’s got bits of this and that stitched together.

所以胎瘤就像怪物肿瘤，因为它像形胎儿一样拥有各种人体组织，包括头发、眼睛、牙齿、骨骼和神组织，有点像科学怪人一样把各类组织缝在了一起。

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种是的囊性胎瘤，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。

The four major types of germ cell tumors are: fetal teratomas, both mature cystic and immature teratomas; yolk sac tumors, or endodermal sinus tumor, choriocarcinoma or placental tissue tumors and finally dysgerminomas or oocyte tumors.

胎瘤，包括囊性胎瘤和未胎瘤；卵黄囊瘤，又叫内胚窦瘤；绒毛膜癌，又叫胎盘组织肿瘤；最后是无性细胞瘤，又叫卵母细胞瘤。