malignant germ cell tumor of ovary malignant dysgerminomatous germ cell tumor of ovary https://github.com/monarch-initiative/mondo/issues/8583 malignant dysgerminomatous germ cell tumour of the ovary dysgerminomatous germ cell cancer of the ovary Reason of obsoletion: duplicate. This will be merged with MONDO:0003481 dysgerminoma of ovary MONDO:0020538 malignant ovarian dysgerminoma GARD:0019705 Orphanet:99912 dysgerminomatous germ cell cancer of ovary 2025-04-01 Malignant dysgerminomatous germ cell tumor of ovary is the most common form of malignant germ cell tumor of ovary, arising from germ cells in the ovary, usually presenting during adolescence with pelvic mass, fever, vaginal bleeding, and acute abdomen and is characterized by bilaterality (around 10% of cases), association with dysgenetic gonads (5 to 10% of cases), elevated serum lactate dehydrogenase (LDH) and human chorionic gonadotrophin (hCG) (in the presence of syncitiotrophoblasts). Malignant dysgerminomatous germ cell tumor of ovary responds well to chemotherapy, potentially sparing patients from infertility and early mortality.