1ST-TRIMESTER DIAGNOSIS OF DUODENAL STENOSIS ASSOCIATED WITH ESOPHAGEAL ATRESIA

Duodenal stenosis associated with oesophageal atresia was diagnosed by ultrasound at 12 weeks' gestation. The diagnosis was made by recognit ion of a double bubble sign which was more pronounced when a vaginal t ransducer was used. Post-abortion autopsy confirmed the diagnosis. Oes ophageal and duodenal obstruction in this case had no effect on the am ount of amniotic fluid or the alpha-fetoprotein concentration since sw allowing and subsequent utilization of amniotic fluid do not occur bef ore 12 weeks of gestation.