Duplication of the IVC results from persistence of both supracardinal veins.
The prevalence is 0.2%–3%.<unk>  IVC should be suspected in cases of recurrent pulmonary embolism following placement of an IVC filter.
As with left IVC, misdiagnosis of the aberrant vessel as lymphadenopathy should be avoided.
Double inferior vena cava
Persistent left superior vena cava
Persistent left inferior vena cava
Overriding aorta
Aortopulmonary fistula
Congenital stenosis of vena cava
Aortic arch anomalies
Interrupted aortic arch