Primary twin ovarian pregnancy

A 20-year-old-woman, gravida II, para I, was admitted to the hospital with vaginal bleeding 17 weeks after her last menstrual period. Her pelvic examination was found to be compatible with 3.5 months of pregnancy by the attending physician. Ultrasonographic examination revealed an empty uterus and two dead fetuses with biometric data consistent with 14 weeks of pregnancy located in the left ovarian region. She was subjected to an explorative laparotomy and an intact gestational sac including the left ovary with normal tubes was observed; a unilateral salpingo-oophorectomy was carried out. Histologic studies confirmed a twin ovarian pregnancy. Although rare, ovarian pregnancy should be considered when approaching a case of ectopic pregnancy. Early diagnosis is generally based on ultrasonographic findings. Advanced cases with unruptured sac and multiple gestations may also be present.