Prenatal diagnosis of down syndrome associated with right aortic arch and dilated septum cavi pellucidi.
A 30-year-old woman with a normal first trimester Down syndrome screening attended our ultrasound unit for a 20-week scan. The most remarkable anomalies were the presence of a right aortic arch along with a dilated cavum septi pellucidi. In addition, the scan showed an atrioventricular canal and bilateral choroid plexus cysts. Fetal karyotype showed the existence of trisomy 21. A novel association between Down syndrome and dilated cavum septi pellucidi is reported and the relationship between DS and vascular rings is discussed.
Servicio de Obstetricia y Ginecología, Hospital de la Plana, 12540 Villarreal, Spain.
José
J
Morales-Roselló
Rafael
R
Lázaro-Santander