The characteristic "double-bubble" sign, ... Identifying Ultrasound Markers for Down Syndrome. MedGenMed 1(2), 1999. [formerly published in Medscape Women's Health eJournal 2(3), 1997].

The double-bubble sign in prenatal ultrasound scans and postnatal abdominal X-rays characterizes the condition. 7,8 As the potential for, and the chances of the occurrence of MI with DA are very ...

Clinically, these entities often present prenatally with ultrasound findings—such as the “double-bubble” sign—or manifest in the neonatal period with symptoms including bilious vomiting ...