<unk>  is a rare, very aggressive form of germ cell tumor usually found in the ovaries.<unk>  has features of both yolk sac tumour and undifferentiated teratoma/embryonal carcinoma, with a characteristic finding of embryoid bodies lying in a loose mesenchymal stroma. It has been found in association with Klinefelter syndrome.
Polyembryoma
Embryoma
Blastoma
Teratoma
Choriocarcinoma
Embryonal carcinoma
Seminoma
Porocarcinoma