Little is known about the epidemiology of biliary tract cancers over the last decade. We investigated trends in incidence, treatment and prognosis of biliary tract cancers according to anatomic site.
714 biliary tract cancers recorded between 2012 and 2019 in the French population-based cancer registry of Burgundy were included. Trends in world age-standardized incidence were depicted using Poisson regression.
Intrahepatic cholangiocarcinoma accounted for 40% of biliary tract cancer. Half of the patients were older than 75 years at diagnosis. Incidence of biliary tract cancer did not vary over time, except a slight increase in intrahepatic cholangiocarcinoma in men and a decrease in the ampulla in both sexes. Among non-metastatic patients, the proportion who underwent R0 resection ranged from 15% for intrahepatic cholangiocarcinoma to 58% for ampulla cancer (p < 0.001). Age, performance status and hospital type were associated with resection. Among unresected patients, 45% received chemotherapy. Older age, jaundice, increasing performance status and comorbidities index negatively affected chemotherapy administration. Net survival was higher for ampulla than for other sites, regardless of patient and treatment characteristics.
Biliary tract cancers present different patterns in incidence. The ampulla site should be considered separately in clinical trials due to its better outcomes.
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Published online: February 27, 2023
Accepted: February 23, 2023
Received: December 1, 2022
Publication stageIn Press Corrected Proof
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