Rare Anatomical Variant of the Inferior Vena Cava: Left Sided Inferior Vena Cava

Anatomical variants of the inferior vena cava are important to know mainly for surgical treatment.They are mainly represented by the duplication of inferior vena cava, whereas left sided inferior vena cava is a rare variant.Imaging allows diagnosis of the variants, as they are usually discovered incidentally. We report the case of a 61 years old patient admitted for rectal cancer, to which a thoraco-abdominal extension examination CT-scan showed a left sided inferior vena cava.