title: Unilateral ovarian agenesis: report of three cases and review of the literature.
abstract: BACKGROUND
  Unilateral ovarian agenesis is a rare event and only a few case have been reported.
  
  
  METHODS
  We present three additional cases, where patients presented with diffuse lower abdominal pain. During laparoscopy, an unilateral ovarian agenesis was observed in the three cases.
  
  
  CONCLUSIONS
  There are two possible explanations of a unilateral ovarian absence, involving an asymptomatic adnexal torsion or congenital absence. Unknown environmental factors or genetic predisposition could contribute to this kind of anomaly.
authors.affiliation: Frauenklinik, Klinikum Innenstadt, Ludwig-Maximilians Universität, Munich, Germany.
authors.forename: I
authors.initials: I
authors.lastname: Mylonas
authors.forename: S
authors.initials: S
authors.lastname: Hansch
authors.forename: S
authors.initials: S
authors.lastname: Markmann
authors.forename: M
authors.initials: M
authors.lastname: Bolz
authors.forename: K
authors.initials: K
authors.lastname: Friese
mesh_terms: D000328:Adult; D000013:Congenital Abnormalities / Q000473:pathology; D005260:Female; D006801:Humans; D010053:Ovary / Q000002:abnormalities*