RESUMO
BACKGROUND: Previous caesarean section is considered the main risk factor for uterine rupture. However, other surgical procedures performed on the uterus can also lead to rupture in future pregnancies. CASE PRESENTATION: The patient was a nulliparous woman, induced at gestational age of 41 + 6 with misoprostol. She developed severe persistent abdominal pain. Due to fetal bradycardia, an acute caesarean section was performed. Peroperatively a large rupture was identified in the uterine fundus and the placenta was detached into the abdomen. Medical history included a previous rightsided salpingectomy due to an extrauterine pregnancy located in the interstitial part of the right Fallopian tube. INTERPRETATION: Interstitial extrauterine pregnancy is rare, and recommendations for mode of delivery for subsequent pregnancies remain unclear. The current case illustrates the importance of being aware of the risk of rupture when the patient has undergone previous gynaecological surgery other than caesarean section, and of ensuring awareness of the placenta's location.