mjl1717
Forum Hero
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I go with D
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Smell the coffee! "Is That an Osler move??"
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| u2mei2u
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Germ cell neoplasms are thought to be derived from primitive germ cells of the embryonic gonad. They constitute the second largest group of ovarian neoplasms (~20%).These tumors can occur in women at any age, but peak incidence is seen during the early 20's. In children and adolescents, >60% of ovarian neoplasms are of germ cell origin, of which ~1/3 are malignant. In adults, the vast majority of germ cell tumors are benign (nearly all mature cystic teratomas). Dysgerminoma is the most common germ cell tumor, accounting for 50% of all germ cell tumor cases. About 20% of cases are diagnosed during pregnancy, and 80% occur in women under 30. Yolk sac tumors (also known as Endodermal sinus tumors) are the second most common germ cell tumor, accounting for 20% of all cases, and are common in girls and young adults (average age: 19). Less common germ cell tumors are embryonal carcinoma, immature teratoma, choriocarcinoma, polyembryomas, and mixed germ cell tumors
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