Placenta percreta leading to spontaneous complete uterine rupture in the second trimester. Example of a fatal complication of abnormal placentation following uterine scarring.

A 30-year-old gravida 2 para 1 was admitted to hospital 2 years after cesarean section at 20 weeks' gestation with acute onset of abdominal pain and hypovolaemic shock. Emergency laparotomy revealed a uterine rupture located in the anterior uterine wall caused by a placenta percreta and supracervical hysterectomy was performed. This site of invasion and finally rupture was in projection of the previous lower-segment cesarean section. This report illustrates the dramatic consequences of abnormal placentation after prior uterine surgery, which can already occur early during pregnancy and prior to the onset of labour.