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Medical Term:

figure-of-8 abnormality


a radiographic appearance associated with total anomalous drainage of the pulmonary venous circulation into enlarged right and anomalous left superior venae cavae, which produces a globular density above the heart; the silhouette suggests the figure 8; TAPVR.

Synonym(s): snowman abnormality

See Also: anomalous pulmonary venous connections, total or partial, under connection

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.