Sonographic diagnosis of cesarean scar pregnancy at 16 weeks.

Cesarean scar pregnancy is rare. However, there has been a rapid increase in the reporting of such cases in recent years. Most of the cases reported in the literature were diagnosed early in the first trimester. Possible management options proposed are pertinent to an early diagnosis. We present a case of a cesarean scar pregnancy diagnosed at 16 weeks that posed a dilemma with regard to management. The patient subsequently suffered a ruptured uterus, which was preserved at surgery.