title: Successful delivery of a twin pregnancy in a bicornuate uterus (uterus bicornis unicollis) by bilateral Caesarean section.
abstract: BACKGROUND
  Müllerian duct anomalies occur in 0.1% to 3% of women, and they are often associated with reproductive problems such as miscarriage, premature labour, premature rupture of the membranes, or malpresentation. Having a twin pregnancy in a patient with a bicornuate uterus (uterus bicornis unicollis) is rare, especially if it is a spontaneous conception.
  
  
  METHODS
  A 40-year-old primigravid woman conceived a twin dichorionic diamniotic pregnancy after three years of primary infertility. She was found on 3-D ultrasound examination to have a bicornuate uterus with one fetus in each horn The prenatal course was uncomplicated. At 38 weeks' gestation, twin babies were successfully delivered by elective bilateral low transverse Caesarean section.
  
  
  CONCLUSIONS
  Because the incidence of such pregnancies is very low, it remains unclear whether a twin pregnancy in a bicornuate uterus is better delivered vaginally or by elective Caesarean section.
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: Mireia
authors.initials: M
authors.lastname: Cruceyra
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Iglesias
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: María
authors.initials: M
authors.lastname: De La Calle
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: Marta
authors.initials: M
authors.lastname: Sancha
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: Sara López
authors.initials: SL
authors.lastname: Magallón
authors.affiliation: Department of Obstetrics, Hospital Universitario La Paz Madrid Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: González
mesh_terms: D000328:Adult; D002585:Cesarean Section / Q000379:methods*; D005260:Female; D006801:Humans; D050498:Live Birth; D009095:Mullerian Ducts / Q000002:abnormalities; D011247:Pregnancy; D014429:Twins, Dizygotic; D014599:Uterus / Q000002:abnormalities*