title: Updates on Precancerous Lesions of the Biliary Tract: Biliary Precancerous Lesion.
abstract: Precursor lesions of invasive adenocarcinoma of the bile duct (cholangiocarcinoma) have been increasingly recognized during the past decade because of the results of multiple studies on the carcinogenesis of cholangiocarcinoma, technologic advancements in diagnostic imaging modalities, and an increase in the volume of elective procedures. The two main precursor lesions of cholangiocarcinoma that have evolved are biliary intraepithelial neoplasia and intraductal papillary neoplasm of the bile duct. These lesions demonstrate histomorphologic similarities to pancreatic intraepithelial neoplasia and intraductal papillary mucinous neoplasm of the pancreas, respectively, whereas mechanisms of carcinogenesis and risk of progressive disease appear distinct. An enhanced understanding of the clinical presentation and pathologic features of precursor lesions of the biliary tract and use of the correct terminology will facilitate efficient communication between surgeons, oncologists, and pathologists and improve quality of patient care.
authors: From the Department of Pathology and Laboratory Medicine, Albany Medical Center, Albany, New York.
authors: Sanaz
authors: S
authors: Ainechi
authors: Hwajeong
authors: H
authors: Lee
mesh_terms: D001659:Biliary Tract / Q000000981:diagnostic imaging / Q000294:innervation / Q000473:pathology*; D001661:Biliary Tract Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology / Q000473:pathology; D063646:Carcinogenesis; D018281:Cholangiocarcinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology / Q000473:pathology; D003937:Diagnosis, Differential; D055088:Early Detection of Cancer; D006801:Humans; D060787:Neoplasm Grading; D009367:Neoplasm Staging; D011230:Precancerous Conditions / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000276:immunology / Q000473:pathology; D009626:Terminology as Topic