<prompt> Which one of the following tumors involving the female genital tract has the WORST prognosis?Dysgerminoma in a 35-year-oldUterine choriocarcinoma in a 25-year-old with a recent history of molar pregnancyGranulosa cell tumor in a 40-year-oldSerous cystadenocarcinoma of the ovary in a 45-year- old  <response>: Ans. D. Serous cystadenocarcinoma of the ovary in a 45-year-oldAround 75 of serous cystadenocarcinoma of the ovary are in an advanced stage at the time of diagnosis.These tumors have a worse prognosis than any of the other tumors listed. 