title: Uterine torsion in delayed diagnosis of abnormal anterior placentation: a report of 2 cases.
abstract: BACKGROUND
  Uterine torsion has been associated with a variety of adverse outcomes ranging from fetal distress to maternal death. Uterine torsion has also been reported in otherwise uncomplicated pregnancies.
  
  
  METHODS
  We report 2 cases of uterine torsion with abnormal anterior placentation identified at cesarean section, which had previously been disguised as posterior placenta previas.
  
  
  CONCLUSIONS
  Given the increased risk of placenta accreta with an anterior placenta and prior cesarean scar, uterine position should be considered in the evaluation of a presumed posterior placenta, particularly with ultrasound findings suggestive of accreta such as placental lakes.
authors.affiliation: Department of Obstetrics and Gynecology, University of Colorado at Denver and Health Sciences Center, Academic Office 1, 12631 East 17th Avenue, Box B-198-6, Room 4405, P.O. Box 6511, Aurora, CO 80045, USA. torri.metz@ucdenver.edu
authors.forename: Torri
authors.initials: T
authors.lastname: Metz
authors.forename: Michael
authors.initials: M
authors.lastname: Trierweiler
authors.forename: Ann Marie
authors.initials: AM
authors.lastname: Arrigo
authors.forename: Virginia D
authors.initials: VD
authors.lastname: Winn
mesh_terms: D000328:Adult; D002585:Cesarean Section; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010921:Placenta Accreta; D010923:Placenta Previa; D010929:Placentation; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014102:Torsion Abnormality / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014463:Ultrasonography; D014591:Uterine Diseases / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging