Monochorionic Twin Discordance for Horseshoe Lung and Tricuspid Atresia

Autores da FMUP

• Carla Maria De Almeida Ramalho

  Autor

Participantes de fora da FMUP

• Gomes, MS
• Monterroso, J
• Brandao, O

Unidades de investigação

• Ginecologia-Obstetrícia e Pediatria

Abstract

Background The horseshoe lung is a congenital malformation in which the bases of the right and the left lung are fused.Case report:We describe a monochorionic twin gestation with malformation discordance. The abnormal twin had a horseshoe lung with hypoplasia of the right lung, tricuspid atresia, cleft lip, and a pelvic right kidney.Conclusion:The discordance of anomalies in this monochorionic twin suggests that a postzygotic mutation, epigenetic change, or environmental factors may be responsible for these malformations.

Keywords

• Cleft palate; horseshoe lung; monozygotic twins; pelvic kidney; tricuspid atresia