Inferior vena cava pseudothrombosis


Features consistent of IVC pseudothrombosis.

Inferior vena caval thrombosis mimics include :

  • pseudothrombosis :  caused by laminar flow of enhanced blood from renal veins streaming parallel to column of unopacified blood returning from lower body. Delayed images will show resolution of filling defect.
  • pseudolipoma (paracaval lipoma) is the partial volume artefact due to pericaval fat above caudate lobe, seen commonly in patients with chronic liver disease. Coronal reformats usually clear the doubt.