Heterotopic triplet pregnancy with an intrauterine, a tubal, and a cervical gestation following in?vitro fertilization and embryo transfer

摘要

Heterotopic pregnancy is defined as concomitant intrauterine and ectopic pregnancy. In natural conception, it is at a rare rate of 1 in 30,000 pregnancies [1]. However, over the past 3 decades, the rate has increased to 1 in 100 pregnancies, mostly because of the increased use of new reproductive technologies of in vitro fertilization and embryo transfer (IVF-ET) treatments in infertile patients [2]. The most common sites of heterotopic ectopic pregnancies, in descending order, occur at the fallopian tube, the cornu, the cesarean scar, the cervix, and the abdomen [3], [4].