Right sided aortic arch - fetal ultrasound

Case contributed by Maulik S Patel
Diagnosis probable


Primigravida for 20-22 week scan. No complaints. 11-13 weeks scan was normal.

Patient Data

Age: 25 years
Gender: Female

There was normal fetal situs.

There is 'U' configuration of pulmonary artery and aortic arch. Trachea is seen within 'U'.  4 chamber view, LVOT-RVOT are normal.

Rest of the fetal anatomical survey was normal.

Fetal maturity corresponded to LMP.

Case Discussion

Findings suggest right sided aortic arch in fetus of 21-22 week gestation.

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