ABSTRACT
Heterotopic pregnancy is the rare simultaneous coexistence of intrauterine and extrauterine gestational sacs. The fact that practitioners do not regularly see this condition elevates its diagnostic and therapeutic challenges. Heterotopic pregnancy is believed to result from the implantation of dizygotic twins at widely separated sites. In the modern era of assisted reproductive technologies (ART), heterotopic pregnancy is more common than was the case in the past. As heterotopic pregnancy may present a life-threatening situation, physicians must have a high index of suspicion in order to reach an early diagnosis and institute treatment.
