[Right-sided double inferior vena cava and common iliac vein: imaging with spiral computerized tomography].

Duplications of the inferior vena cava (IVC) are rare variants of the abdominal vessels and are normally located on both sides of the abdominal aorta. The rare case of a rightsided infrarenal duplication of the IVC with involvement of the common iliac vein is reported. Details of the embryology are presented for the understanding of this IVC variant. The spiral CT with multiplanar reconstructions makes it possible to define the vascular morphology and to differentiate it from lymphoma.