[Ectopic pregnancy in cesarean scar].

The ectopic pregnancy within a cesarean scar, is defined as the implantation of the blastocyst outside the endometrium in the site where the histerotomy was made in the previous cesarean. We report a case of a 35-year-old patient, which arrives to the emergency room with 11.3 weeks of gestation. With the diagnostic, prognostic and pleased parity we decide to do block hysterectomy. We describe this case because of its low frequency, but catastrophic consequences that put on danger mothers life. Prevalence is calculated on 1:1800-1226 of all pregnancies (0.15%) and represents 6.15% of de ectopic pregnancies in women with at least one cesarean. They have been published a mayor number of cases during the last decade, probably because of the world increment of cesarean delivery or the earliest diagnostic. We recommend interruption of pregnancy at the moment of diagnosis, to avoid complications.