Unilateral Dichorionic Twin Tubal Ectopic Pregnancy Following Fresh In vitro Fertilization and Embryo Transfer: A Case Report

The gains of invitro fertilization in alleviating the anguish of infertile couples cannot be quantified. However, despite these benefits, in-vitro fertilization increases the overall incidence of ectopic gestation. Twin tubal ectopic pregnancy occurs when two embryos or blastocyst implants in the fallopian tubes rather than within the endometrial cavity. Several mechanisms have been postulated to explain this rare occurrence. It could result from the splitting of embryos already in the Fallopian tube, or from dual implantation from multiple embryos transfer. The case report presented is that of a very rare unilateral twin tubal ectopic gestation following an in-vitro fertilization treatment which was diagnosed pre-operatively in a woman who has had a prior laparotomy with salpingectomy for ectopic pregnancy.