Can I get a picture of hepatitis B virus?

Cholangiocarcinoma is an adenocarcinoma of the biliary duct system. It is a relatively rare cancer with an incidence of 1-2:100,000 in the Western world. Its risk factors may include environmental exposures such as polyvinyl chloride or Thorotrast (thorium dioxide); however, this is controversial. It is also associated with the parasite opisthorchis viverrini and clonorchiasis - liver fluke. Other risk factors include hepatolithiasis, congenital liver disorders, thorotrast and ulcerative colitis. A third of patients with primary sclerosing cholangitis will develop cholangiocarcinoma, so careful clinical, laboratory (liver function tests and cancer markers such as CA-19-9), and radiologic follow-up of these patients is warranted. It is NOT associated with hepatitis B or liver cirrhosis. Mutations at the INK4a/ARF locus have been detected in cholangiocarcinomas.