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Ultrasound
Modality: Ultrasound

- “ ARSA is one of the 2nd-trimester soft markers. Its presence suggests an increased risk of trisomy 21 in the fetus.  ”

Used in the following article:

  • Aberrant right subclavian artery - “ Aberrant right subclavian arteries (ARSA), also known as arteria lusoria, are one of the commonest of the aortic arch anomalies.  Epidemiology T...”

View full size version of Aberrant right subclavian artery (ARSA)

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