Ampulla of VaterCommon Bile Duct NeoplasmsPancreaticoduodenectomyFallopian TubesDuodenal NeoplasmsDuodenoscopyCholangiopancreatography, Endoscopic RetrogradeCarcinoma, Signet Ring CellCommon Bile Duct DiseasesDuodenoscopesAnus, ImperforateBile Duct NeoplasmsJaundiceDuodenumAdenoma, VillousBiliary Tract NeoplasmsSperm TransportPancreatic DuctsAdenocarcinomaDuodenal DiseasesGallstonesNeoplasms, Multiple PrimaryCarcinoid TumorKrukenberg TumorCarcinoma, NeuroendocrineCommon Bile DuctKeratin-7Ovum TransportBiliary Tract Surgical ProceduresTomography, X-Ray ComputedHair Cells, AmpullaFatal OutcomePancreatic NeoplasmsEndolymphSemicircular Canals