Ampulla of VaterCommon Bile Duct NeoplasmsDuodenal NeoplasmsPancreaticoduodenectomyPancreatic NeoplasmsDiverticulumJejunostomyDuodenal DiseasesPancreatectomyAdenocarcinomaCommon Bile Duct DiseasesBile Duct NeoplasmsRetroperitoneal SpaceDuodenumDuodenal ObstructionPancreatic DuctsBiliary Tract Surgical ProceduresJaundice, ObstructiveGastrostomySphincterotomy, TranshepaticTumor Markers, BiologicalSphincterotomy, EndoscopicDigestive System NeoplasmsCommon Bile DuctCholedocholithiasisTumor BurdenPylorusTumor Necrosis Factor-alphaCell Line, TumorCholangiopancreatography, Endoscopic RetrogradeRetrospective StudiesNeoplasms, Multiple PrimaryPancreatic DiseasesSurvival RateWilms TumorPancreatitisTreatment OutcomePancreasNeoplasms, ExperimentalGenes, Tumor SuppressorPostoperative ComplicationsCarcinoid TumorTumor Suppressor Protein p53Carcinoma, Pancreatic DuctalTime Factors