Prognostic factors and adjuvant treatments for surgically treated cancers of the biliary tract: a multicentre study of the Anatolian Society of Medical Oncology (ASMO).

Background: Biliary tract cancers are rare, and surgical resection is the standard treatment at early stages. However, reports on the benefits of adjuvant treatment following surgical resection are conflicting. This study aimed to evaluate the factors affecting survival and adjuvant treatments in patients with surgically treated biliary tract cancers.