title: Prenatally diagnosed ectrodactyly at 16 weeks' gestation by 2- and 3-dimensional ultrasonography: a case report.
abstract: OBJECTIVE
  Ectrodactyly is a rare malformation with various presentations. The current report describes a case of ectrodactyly detected using 2-dimensional (2D) and 3-dimensional (3D) ultrasonography at 16 weeks' gestation.
  
  
  RESULTS
  The 2D ultrasonographic findings were ectrodactyly in the right hand and monodactyly in the left hand, and these results were confirmed and further clarified using 3D imaging. The postmortem X-ray findings were consistent with the ultrasonography.
  
  
  CONCLUSIONS
  We conclude that 3D ultrasonography can assist in clarifying 2D ultrasonography findings of hand malformations during the second trimester of pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology, Ulsan University Hospital, Ulsan, Korea.
authors.forename: Bon Sang
authors.initials: BS
authors.lastname: Koo
authors.forename: Su Jin
authors.initials: SJ
authors.lastname: Baek
authors.forename: Mi Ryung
authors.initials: MR
authors.lastname: Kim
authors.forename: Won Duk
authors.initials: WD
authors.lastname: Joo
authors.forename: Hang Jo
authors.initials: HJ
authors.lastname: Yoo