Monday, May 23, 2011

Hepatic Arterioportal Shunts

Differential considerations for a hepatic arterioportal shunt include:
  • Tumor: Classically in hepatocellular carcinoma. Seen in ~60% of patients with hepatocellular carcinoma.
  • Transhepatic needling:
  • Chemoembolization:
  • surgery:
  • Cirrhosis:
  • Congenital vascular malformations: May be seen with Osler-Weber-Rendu disease.
  • Idiopathic: Typically subcapsular or peripheral. Focal increased-attenuation wedge-shaped defects with early portal venous filling on dynamic CT.


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