Inferior vena cava pseudothrombosis
Vague abdominal pain. Previous ultrasound (1 day back) showed para-aortic nodes with mildly dilated IVC.
Loading Stack -
0 images remaining
The images show non-enhanced IVC below the level of renal veins. The enhancing renal veins enter the IVC and sections above this level show filling defects.
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.
- 1. Sheth S, Fishman EK. Imaging of the inferior vena cava with MDCT. AJR Am J Roentgenol. 2007;189 (5): 1243-51. doi:10.2214/AJR.07.2133 - Pubmed citation
- 2. Kaufman LB, Yeh BM, Breiman RS et-al. Inferior vena cava filling defects on CT and MRI. AJR Am J Roentgenol. 2005;185 (3): 717-26. AJR Am J Roentgenol (full text) - Pubmed citation