Paracaval lipoma

A.Prof Frank Gaillard et al.

Paracaval lipoma (or juxtacaval fat collection) can be a frequent finding on CT and can seen in up to  0.5% of examinations 1. Some even consider this as a normal variation5. It occurs at the medial aspect of the intrahepatic portion of the inferior vena cava (IVC) above the caudate lobe and represents pericaval fat appearing to invaginate into the IVC. This is thought to be due to volume averaging through inwards and upwards in-drawing of the posteromedial wall of the IVC as a result of negative pressure created within the thorax on inspiration 2.

Associations

It can be seen in patients with cirrhosis 4

Differential diagnosis

On imaging consider

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Article information

rID: 6755
Tags: ivc, rg_2015
Synonyms or Alternate Spellings:
  • Lipoma of the IVC
  • IVC lipoma
  • Paracaval lipomas
  • Juxtacaval fat collection

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