Ampulla of VaterCommon Bile Duct NeoplasmsCarcinomaPancreaticoduodenectomyCarcinoma, Squamous CellCarcinoma, HepatocellularFallopian TubesDuodenal NeoplasmsDuodenoscopyCarcinoma, Signet Ring CellAdenocarcinomaCarcinoma in SituCarcinoma, NeuroendocrineCarcinoma, PapillaryCholangiopancreatography, Endoscopic RetrogradeBile Duct NeoplasmsImmunohistochemistryCommon Bile Duct DiseasesNeoplasms, Multiple PrimaryDuodenoscopesBiliary Tract NeoplasmsJaundiceLiver NeoplasmsAnus, ImperforateCarcinoma, Ductal, BreastAdenoma, VillousDuodenumCarcinoma, Basal Cell