Appendiceal NeoplasmsCarcinoid TumorCystadenoma, MucinousAppendixGoblet CellsMalignant Carcinoid SyndromeCarcinoid Heart DiseaseMucinsConjunctivaMucin-2Mucin 5ACIleal NeoplasmsMucusBronchial NeoplasmsMetaplasiaHydroxyindoleacetic AcidOctreotideIntestinal NeoplasmsChromogranin AChromograninsGastrointestinal NeoplasmsIntestinal MucosaNeuroendocrine TumorsMucin-3SialomucinsExocrine GlandsACTH Syndrome, Ectopic