Right atrial appendage aneurysm (antenatal ultrasound)

Case contributed by Ersen Alp Özbalcı


20-24 weeks detailed obstetric ultrasound. Second pregnancy. Parents are third degree relatives.

Patient Data

Age: 25 years
Gender: Female

Fetal Cardiac scanning


4 chamber view reveals a 5th room close to the right atrium and right ventricle. There is a connection between the right atrium and the aneurysm.

Case Discussion

Atrial aneurysms are rare entities. Left-sided aneurysms are more common than right. Left-sided atrial aneurysms may be relevant with atrial arrhythmias. Right-sided atrial aneurysms can be complicated by fetal hydrops

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