RT Journal Article SR Electronic T1 Synchronous mucinous adenocarcinoma of the endometrium and mucinous cystadenoma of bilateral ovaries presenting during fertility therapy JF International Journal of Gynecologic Cancer JO Int J Gynecol Cancer FD BMJ Publishing Group Ltd SP 169 OP 171 DO 10.1136/ijgc-00009577-200401000-00025 VO 14 IS 1 A1 T. Gotoh A1 N. Hayashi A1 S. Takeda A1 S. Itoyama A1 M. Takano A1 Y. Kikuchi YR 2004 UL http://ijgc.bmj.com/content/14/1/169.abstract AB We describe a very rare case of synchronous mucinous tumor of the endometrium and ovaries presenting during ovulation induction. A 31-year-old woman received ovulation induction for 5-year primary infertility. Ultrasonography revealed mucus retention in the uterine cavity and bilateral multicystic ovaries during ovulation induction. Atypical hyperplasia was diagnosed by endometrial curettage. Repeated procedures including ovarian cystectomy, endometrial curettage and in vitro fertilization combined with progestine therapy resulted in no pregnancy but rapid recurrences. She finally underwent simple hysterectomy and bilateral salpingo-oophorectomy. Microscopic examination revealed mucinous cystadenoma in the both ovaries and well differentiated mucinous adenocarcinoma of the endometrium.