Chromogranin APancreatic HormonesAdrenal MedullaNeuroendocrine TumorsChromaffin GranulesNeurosecretory SystemsCarcinoid TumorSynaptophysinCarcinoma, NeuroendocrineChromaffin SystemSecretogranin IIEndocrine GlandsSecretory VesiclesCatecholaminesEnterochromaffin-like CellsEnterochromaffin CellsPheochromocytomaEndocrine Gland NeoplasmsCytoplasmic GranulesCarboxypeptidase HChromaffin CellsNerve Tissue ProteinsNeoplasms, Nerve TissuePeptide FragmentsCattleAdrenal Gland NeoplasmsNeuroendocrine CellsTumor Markers, BiologicalImmunohistochemistryEnteroendocrine CellsProprotein Convertase 2Colitis, Lymphocytic