Adenocarcinoma, MucinousAdenocarcinomaAppendiceal NeoplasmsCarcinoma, Signet Ring CellPseudomyxoma PeritoneiBiopsyRectal FistulaCecal NeoplasmsCystadenoma, MucinousUrachal CystCalymmatobacteriumPerineumCystadenocarcinoma, MucinousMucin-2MucinsColorectal NeoplasmsStomach NeoplasmsNeoplasm StagingImmunohistochemistryOvarian NeoplasmsTumor Markers, BiologicalBiopsy, NeedleColonic NeoplasmsPrognosisRectal NeoplasmsMicrosatellite InstabilityLung NeoplasmsKaplan-Meier EstimateEsophageal NeoplasmsPancreatic NeoplasmsBarrett EsophagusAdenocarcinoma, PapillaryCarcinoma, Pancreatic DuctalAdenocarcinoma, Bronchiolo-Alveolar