Adenocarcinoma, MucinousAppendixAdenocarcinomaAppendiceal NeoplasmsCarcinoma, Signet Ring CellPseudomyxoma PeritoneiCystadenoma, MucinousCecal NeoplasmsRectal FistulaAppendectomyAppendicitisCecal DiseasesUrachal CystCalymmatobacteriumPerineumTumor Markers, BiologicalCystadenocarcinoma, MucinousStomach NeoplasmsMucin-2MucoceleMucinsNeoplasm StagingImmunohistochemistryColonic NeoplasmsColorectal NeoplasmsOvarian NeoplasmsPancreatic NeoplasmsLung NeoplasmsPrognosisEsophageal NeoplasmsRectal NeoplasmsAdenocarcinoma, PapillaryCarcinoid TumorCarcinoma, Pancreatic DuctalBarrett EsophagusMicrosatellite InstabilityAdenocarcinoma, Bronchiolo-AlveolarCell Line, TumorKaplan-Meier EstimateCardiaAdenoma, VillousTumor BurdenMammary Neoplasms, ExperimentalNeoplasms, Multiple PrimaryCarcinoma, Squamous CellGene Expression Regulation, NeoplasticTumor Necrosis Factor-alphaNeoplasms, ExperimentalTumor Suppressor Protein p53Esophagogastric JunctionIntestinal PerforationCystadenocarcinomaNeoplasm MetastasisKeratin-7Spermatic Cord TorsionGenes, Tumor SuppressorRetrospective StudiesIntestinal NeoplasmsAbdomen, AcuteNeuroendocrine TumorsEndometrial NeoplasmsAdenomaTomography, X-Ray ComputedNeoplasm ProteinsPrecancerous ConditionsTreatment OutcomeDNA, NeoplasmImmunoenzyme TechniquesAntigens, NeoplasmCell ProliferationAbdominal PainGastrointestinal NeoplasmsRNA, MessengerMutationDisease ProgressionTumor Suppressor ProteinsGenes, rasPeritoneal NeoplasmsDuodenal NeoplasmsTransplantation, HeterologousLymphatic MetastasisReverse Transcriptase Polymerase Chain ReactionMice, NudeWilms Tumor