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Concordant body stalk anomaly in a monoamniotic twin pregnancy at 9 weeks


  • Funding sources: None

  • Conflicts of interest: None declared


What's already known about this topic?

  • Cases of early pregnancy diagnosis of body stalk anomaly are relatively few, particularly in twins.

What does this study add?

  • This is the first diagnosis of concordant body stalk anomaly in monoamniotic twins before 10 gestational weeks.
  • The observation of an intact amniotic cavity with both embryos showing the same anomaly supports a primary ectodermal failure as the cause for body stalk anomaly.