NCIthesaurus existence starts during central nervous system adult germ cell tumor adult central nervous system mixed germ cell tumor NCI:C27402 UMLS_CUI:C1332195 A central nervous system adult germ cell tumor that develops from misfolding and misplacement of embryonic cells into the lateral mesoderm, causing these cells to become entrapped in different areas of the brain, has_material_basis_in abnormally proliferating cells derives_from germ cells. disease_ontology DOID:7945 Adult onset