Pregnancy in Non-Communicating Rudimentary Horn of A Unicornuate Uterus

Background: Diagnosis and management of pre-rupture stage of the pregnant horn are difficult and usually missed on a routine ultrasound scan. Furthermore, most cases are detected after rupture of pregnant horn. Case: We presented a 28-year-oldG2 L1 woman with diagnosis of RHP at 14 weeks of gestation. She was initially diagnosed with a normal intrauterine pregnancy, whereas a pregnancy in a right-sided non-communicating rudimentary horn with massive hemoperitoneum was later discovered on laparotomy. Conclusion: RHP has high risk of death for mother, so there must be a strong clinical suspicion for the diagnosis of RHP. Although there is a major advancement in field of diagnostic ultrasound and other imaging modalities, prenatal diagnosis has remained elusive and a laparotomy surgery is considered as a definitive diagnosis.