Atrial septal defect (osmium primum)

Moshe Bronshtein

Haifa, Israel.

Case report
Following images show two cases of atrial septal defects (ostium primum) seen at 15 and 16 weeks of pregnancy.

Images 1 and 2; videos 1 and 2: 2D images of the fetal heart showing linear insertion of AV valves creating the so called "mercedes sign". This sign is frequently seen in AVSD. However the main difference is the stable crux ( the connection of the valves to the septum) as appears in this case. The differential diagnosis are AVSD and left persistent superior vena cava.

Image 1
Image 2

Discussion Board

Start a discussion about this article
Add bookmark Bookmarked

Menu