Cesarean scar ectopic pregnancy: case series and review of the literature.

Cesarean scar ectopic pregnancy is becoming increasingly common at tertiary care hospitals around the world. It is a condition in which the embryo implants within the myometrium at the site of a previous cesarean hysterotomy, and it can occur in women with only one prior cesarean delivery. We present four cases of cesarean scar ectopic pregnancy diagnosed within a 6-month period between 2007 and 2008. Their initial presentations and management are discussed, followed by a review of the published literature summarizing both diagnostic and management recommendations.