Epidemiology

Most common malignancy of the biliary system.

􀂄 5th most common tumor of the GI tract

􀂄 Most common in the seventh or eighth decades

of life.

􀂄 Females to males: 3-4:1

􀂄 1.2 cases per 100,000

􀂄 Highest rates in Native Americans and South

Americans, Polish and North Indians