umls-concept:C0206664 | skos:definition | MSH: A malignant neoplasm consisting of elements of teratoma with those of embryonal carcinoma or choriocarcinoma, or both. It occurs most often in the testis. (Dorland, 27th ed),NCI: A type of germ cell cancer that usually forms in the testes (testicles).,NCI: A germ cell tumor characterized by the presence of an embryonal carcinoma component and a teratoma component. | lld:umls |