<unk>  is a malignant, trophoblastic cancer, usually of the placenta. It is characterized by early hematogenous spread to the lungs. It belongs to the malignant end of the spectrum in gestational trophoblastic disease (GTD). It is also classified as a germ cell tumor and may arise in the testis or ovary.
Choriocarcinoma
Embryoma
Embryonal carcinoma
Seminoma
Teratoma
Endometrioid tumor
Leiomyosarcoma
Adenomyoma