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Fallen contrast sign

The fallen contrast sign refers to a trace of concentrated contrast material layering along the dependent left atrial wall during contrast-enhanced cardiac CT, suggestive of a right-to-left shunt. The finding has primarily been described as an indirect sign in sinus venosus atrial septal defect 1-4.

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Article information

rID: 73522
System: Cardiac
Section: Signs
Tag: cases
Synonyms or Alternate Spellings:

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