CystadenocarcinomaCystadenocarcinoma, MucinousCystadenomaCystadenocarcinoma, PapillaryCystadenocarcinoma, SerousCystadenoma, MucinousAppendiceal NeoplasmsNeoplasm MetastasisMucoceleCystsPyonephrosisMixed Tumor, MesodermalOvarian NeoplasmsBiliary Tract NeoplasmsLymphatic MetastasisCystadenoma, PapillaryParotid NeoplasmsBarium SulfatePseudomyxoma PeritoneiBile Ducts, IntrahepaticBile Duct NeoplasmsTomography, X-Ray ComputedRetroperitoneal NeoplasmsPancreatic NeoplasmsLiver NeoplasmsSalivary Gland NeoplasmsTumor Markers, BiologicalPancreatectomyHydroxy AcidsPancreaticoduodenectomyBiopsy, Fine-NeedleImmunoenzyme Techniques