A 26 year-old female presented with progressive intermittent right upper qu
adrant pain. Hepatic arteriovenous malformation with small intrahepatic bil
omas were found. She underwent hepatic artery ligation for control of her a
bdominal pain. Though the abdominal pain subsided after the hepatic artery
ligation, the intrahepatic bilomas progressed. It is possible that the hepa
tic arteriovenous malformation (AVM) might reduce blood flow to the bile du
ct and then induce ischemia in the peribiliary capillary plexus, thus leadi
ng to bile duct necrosis and formation of bilomas, which could be further a
ggravated by hepatic artery ligation.