Monarch Disease Ontology term MONDO_0003760 (pediatric ovarian germ cell tumor) is a germ cell tumor that arises from the ovary and occurs in children. Also known as: childhood ovarian germ cell neoplasm, childhood ovarian germ cell tumor, childhood ovarian germ cell tumour, ovarian germ cell tumor of childhood, ovarian germ cell tumour of childhood, paediatric ovarian germ cell neoplasm, pediatric ovarian germ cell neoplasm.