
Cancers of the gallbladder and biliary tract are uncommon malignancies in the United States with a combined incidence of less than 8,000 new cases per year, about 5,000 of which are gallbladder cancer and about 2,000 to 3,000 of which are cholangiocarcinomas, including intrahepatic, hilar, and distal bile duct cancers.[1] For gallbladder cancer with mucosa-confined disease, the 5-year survival rate is approximately 32%, and for advanced disease, less than 10% of patients survive longer than 1 year.[2]

