<prompt> Most common ovarian tumor in young lady is ?DysgerminomaOvarian Mucinous CystadenocarcinomaOvarian Serous CystadenocarcinomaFibroid  <response>: Ans. is a i.e., Dysgerminoma Dysgerminoma is the ovarian counterpa of testicular seminoma. Dysgerminomas account for about 2 of ovarian cancers and roughly 50 of malignant ovarian germ cell tumors. They may occur in childhood, but 75 occur in the second and third decades of life. They are usually unilateral. All dysgerminomas are malignant. They are extremely radiosensitive. 