The no-man's land of nontubal ectopic and cesarean section scar pregnancies.

Nontubal ectopic pregnancy (NTEP) and cesarean section scar pregnancy (CCSP) are a relatively uncommon but potentially very dangerous conception event. If diagnosed early, they can be treated very effectively. Cesarean section scar ectopic is unique in that expectant management may allow them to persist longer, but with overwhelmingly catastrophic consequences. Reproductive endocrinologists are uniquely positioned to diagnose and treat NTEP/CCSP early, thereby avoiding long-term catastrophic consequences.