Adenocarcinoma, MucinousAdenocarcinomaAppendiceal NeoplasmsCarcinoma, Signet Ring CellPseudomyxoma PeritoneiRectal FistulaCecal NeoplasmsCystadenoma, MucinousUrachal CystCalymmatobacteriumPerineumCystadenocarcinoma, MucinousMucin-2MucinsColorectal NeoplasmsStomach NeoplasmsNeoplasm StagingOvarian NeoplasmsImmunohistochemistryTumor Markers, BiologicalColonic NeoplasmsRectal NeoplasmsPrognosisMicrosatellite InstabilityKaplan-Meier EstimateLung NeoplasmsPancreatic NeoplasmsEsophageal NeoplasmsAdenocarcinoma, PapillaryCarcinoma, Pancreatic DuctalBarrett EsophagusAdenocarcinoma, Bronchiolo-Alveolar