[Placenta percreta over a cesarean scar with bladder invasion. General review and 2 case reports]

The authors report two new cases of placenta percreta on a caesarian scar with invasion of the bladder. On the basis of a review of the literature, they demonstrate its seriousness, which is always increased by the unexpected nature of the complications. They therefore recall the clinical and paraclinical factors which can provide grounds for suspecting this possibility, so that the hemostasis hysterectomy required can be carried out on the best possible conditions.