Bile Duct NeoplasmsBile Ducts, ExtrahepaticBile DuctsBile Ducts, IntrahepaticAdenoma, Bile DuctSalivary DuctsCommon Bile DuctHepatic Duct, CommonBileCarcinomaCholangiocarcinomaGallbladder NeoplasmsCommon Bile Duct NeoplasmsBile Duct DiseasesBile Acids and SaltsAdenocarcinoma, PapillaryNervous System NeoplasmsSalivary Gland NeoplasmsBiliary Tract NeoplasmsCarcinoma, DuctalNeoplasm InvasivenessAdenocarcinomaImmunohistochemistryCommon Bile Duct DiseasesLiver NeoplasmsCarcinoma, Squamous CellCarcinoma, HepatocellularSurvival RateCholestasisPrognosisPancreatic DuctsGallstonesThyroglossal CystCarcinoma, Intraductal, NoninfiltratingParotid NeoplasmsCholangiopancreatography, Endoscopic RetrogradeCholangiographyCholestasis, ExtrahepaticCystic DuctCarcinoma, Ductal, BreastKidney Tubules, CollectingCarcinoma in SituFatal OutcomeCystadenocarcinomaCholelithiasisKeratin-7Kidney NeoplasmsTumor Markers, BiologicalThoracic DuctCholecystectomy, LaparoscopicAdenoma, PleomorphicAdenoma, OxyphilicCarcinoma, PapillaryJaundice, ObstructiveCholecystectomyBiliary TractCarcinoma, Renal CellCholangitisBiliary Tract Surgical ProceduresBreast NeoplasmsLigationGallbladderCholedocholithiasisSphincterotomy, EndoscopicBiliary Tract DiseasesLymphatic MetastasisNeoplasm StagingRetrospective StudiesLiverAmpulla of VaterPancreatic NeoplasmsCarcinoma, Basal CellCholangiopancreatography, Magnetic ResonanceBile PigmentsNeoplasm Recurrence, LocalBile CanaliculiBiliary FistulaWolffian DuctsSphincter of OddiCarcinoma, Transitional CellCholestasis, IntrahepaticMullerian DuctsBile RefluxCholedochal CystLiver Cirrhosis, BiliaryCombined Modality TherapyCarcinoma, BronchogenicCarcinoma, Adenoid CysticBiliary AtresiaTaurocholic AcidCarcinoma, NeuroendocrineCholedochostomyPancreatitisDrainageCarcinoma, Small CellTreatment OutcomeUrsodeoxycholic AcidCarcinoma, MedullaryHepatectomyCarcinoma, Lobular