title: Pregnancy in a noncommunicating rudimentary horn of a unicornuate uterus: Prerupture diagnosis and management.
abstract: OBJECTIVE
  The estimated incidence of rudimentary horn pregnancy is one in 76,000. It is a life-threatening entity with a 50% risk of uterine rupture. With advances in prenatal ultrasound in recent decades, there may be an opportunity to detect rudimentary horn pregnancy earlier, resulting in a lower incidence of maternal morbidity and mortality. Management is typically resection of the rudimentary horn and the ipsilateral fallopian tube by either laparotomy or laparoscopy.
  
  
  METHODS
  Here, we present the case of a 22-year-old woman with a suspected ectopic pregnancy of 12 weeks' gestation. Ultrasound and magnetic resonance imaging were performed as preoperative evaluations. A definitive diagnosis was made during laparotomy, and resection of the rudimentary horn pregnancy was performed.
  
  
  CONCLUSIONS
  Diagnosis and management of rudimentary horn pregnancy remain a challenge. We should be alert to prenatal ultrasound with the intention of making an earlier diagnosis, thereby resulting in decreased maternal morbidity and mortality.
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors: Yu-Ju
authors: YJ
authors: Lai
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors: Chen-Hsien
authors: CH
authors: Lin
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors: Wen-Chien
authors: WC
authors: Hou
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors: Kwei-Shuai
authors: KS
authors: Hwang
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors: Mu-Hsien
authors: MH
authors: Yu
authors: Department of Obstetrics and Gynecology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. Electronic address: su108868@gmail.com.
authors: Her-Young
authors: HY
authors: Su
mesh_terms: D019468:Disease Management; D042241:Early Diagnosis; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D065173:Pregnancy, Cornual / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D016216:Ultrasonography, Prenatal; D014564:Urogenital Abnormalities / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D014597:Uterine Rupture / Q000517:prevention & control*; D014599:Uterus / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D055815:Young Adult
keywords: ectopic pregnancy; prenatal magnetic resonance imaging; prenatal ultrasound; rudimentary horn pregnancy