Malignant germ cell tumor of ovary is a rare ovarian cancer arising from germ cells in the ovary, frequently unilateral at diagnosis which characteristically presents during adolescence with pelvic mass, fever, vaginal bleeding and acute abdomen. The disease is malignant germ cell tumor of ovary (Monarch Disease Ontology id MONDO_0018171). Also known as: MOGCT, malignant germ cell neoplasm of ovary, malignant germ cell neoplasm of the ovary, malignant germ cell tumor of the ovary, malignant germ cell tumour of the ovary, malignant ovarian germ cell neoplasm, malignant ovarian germ cell tumor, malignant ovarian germ cell tumour.