Adenocarcinoma, MucinousAdenocarcinomaAppendiceal NeoplasmsCarcinoma, Signet Ring CellPseudomyxoma PeritoneiBiopsyRectal FistulaCecal NeoplasmsCystadenoma, MucinousUrachal CystCalymmatobacteriumPerineumCystadenocarcinoma, MucinousMucin-2MucinsColorectal NeoplasmsStomach NeoplasmsNeoplasm StagingOvarian NeoplasmsImmunohistochemistryTumor Markers, BiologicalBiopsy, NeedleColonic NeoplasmsRectal NeoplasmsPrognosisMicrosatellite InstabilityLung NeoplasmsKaplan-Meier EstimatePancreatic NeoplasmsEsophageal NeoplasmsBarrett EsophagusAdenocarcinoma, PapillaryCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-Alveolar