Carcinoid TumorMalignant Carcinoid SyndromeCarcinoid Heart Disease3-IodobenzylguanidineIleal NeoplasmsHydroxyindoleacetic AcidOctreotideIntestinal NeoplasmsBronchial NeoplasmsAppendiceal NeoplasmsLiver NeoplasmsGastrointestinal NeoplasmsChromograninsNeuroendocrine TumorsChromogranin AACTH Syndrome, EctopicDuodenal NeoplasmsThymus Neoplasms