NCIt definition : A biphasic neoplasm that arises from the ovary or the testis. It is characterized
by the presence of neoplastic germ cells and neoplastic sex cord-stromal cells. It
includes the gonadoblastoma and mixed germ cell-sex cord stromal tumor, unclassifiable.;
Alternative definition : NICHD: A biphasic tumor that arises from the ovary or the testis. It is characterized
by the presence of neoplastic germ cells and neoplastic sex cord-stromal cells; examples
include the gonadoblastoma and mixed germ cell-sex cord stromal tumor, unclassifiable.;