Heterotopic pregnancy, the simultaneous existence of an intrauterine and an extrauterine pregnancy, is an extremely rare condition, with a reported incidence of 1 in 30,000 pregnancies [1]. Women who undergo assisted reproduction are at increased risk and in this group the incidence may reach 0.75% [2]. Because findings in patients with heterotopic pregnancy, including abdominal pain, adnexal m...

A 29-year-old gravida 10, para 3 (1 term gestation, 1 preterm gestation of twins, 1 stillbirth at 5 months, 2 spontaneous abortions, and 4 elective abortions) presented to the clinic at about 5 weeks’ gestation with abdominal pain and vaginal bleeding. She described the pain as sporadic, mostly on the left side, exacerbated by movement, and resolving with rest, and the bleeding as initially int...