Adenocarcinoma, MucinousAdenocarcinomaAppendiceal NeoplasmsCarcinoma, Signet Ring CellPseudomyxoma PeritoneiRectal FistulaCystadenoma, MucinousCecal NeoplasmsUrachal CystCalymmatobacteriumPerineumCystadenocarcinoma, MucinousMucin-2MucinsColorectal NeoplasmsStomach NeoplasmsNeoplasm StagingOvarian NeoplasmsImmunohistochemistryTumor Markers, BiologicalPrognosisColonic NeoplasmsRectal NeoplasmsMicrosatellite InstabilityLung NeoplasmsBiopsyPancreatic NeoplasmsEsophageal NeoplasmsKaplan-Meier EstimateAdenocarcinoma, PapillaryBarrett EsophagusCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-AlveolarBiopsy, NeedleRetrospective StudiesSensitivity and Specificity