Malignant biliary obstruction: Percutaneous transhepatic drainage and stenting

Damage to the liver such as from excessive alcohol consumption, or viral infections (such as Hepatitis B or C virus) can lead to the formation of liver cancer cells, which subsequently grow and spread within the liver.

Blood continually passes through the liver to become detoxified. Some cancers allow cells from other organs (such as the colon or rectum) to travel through the blood stream, and these cancer cells can take root in the liver and form small colonies.