Superior vena caval duplication

Last revised by Dr James Harvey on 03 Jan 2021

Superior vena caval (SVC) duplication is the most common form of a left-sided SVC, where the normal right-sided SVC remains. The right SVC, however, can be smaller in approximately two-thirds of such cases 3.

Pathology

Results from failure of the embryonic left anterior cardiac vein to regress. Drainage is variable and can be to:

Associations

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Cases and figures

  • Figure 1
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  • Case 1
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  • Case 2: with left IVC
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  • Case 3: with right aortic arch
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  • Case 4
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  • Case 5
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  • Case 6
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  • Case 7: left SVC draining to left atrium
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