MONDO_0003000 (central nervous system germ cell tumor) is a unique group of rare tumors of the central nervous system that affect mainly children and adolescents. Their morphologic and biologic profile corresponds to that of homologous germ cell tumors that arise in the gonads and in other extragonadal sites. Representative examples include: germinoma, embryonal carcinoma, yolk sac tumor, choriocarcinoma, and teratoma. Also known as: CNS germ cell neoplasm, CNS germ cell tumor, CNS germ cell tumour, central nervous system germ cell neoplasm, central nervous system rare germ cell tumor, central nervous system rare germ cell tumour, germ cell neoplasm of CNS, germ cell neoplasm of central nervous system.