What is the role of chemical exposures in the etiology of cholangiocarcinoma (CCC)?

Updated: Dec 28, 2019
  • Author: Peter E Darwin, MD; Chief Editor: N Joseph Espat, MD, MS, FACS  more...
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Certain chemical exposures have been implicated in the development of bile duct cancers, primarily in workers in the aircraft, rubber, and wood-finishing industries.

Cholangiocarcinoma has developed decades after administration of the radiologic contrast medium thorium dioxide (ie, Thorotrast). This product, which results in lifelong alpha particle irradiation by thorium decay products, was in use from the 1930s until the 1950s. [16]

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