title: Uncommon tumors of the APUD system.
mesh_terms: D001078:APUD Cells; D000126:Achlorhydria / Q000175:diagnosis; D001079:Apudoma / Q000175:diagnosis; D002276:Carcinoid Tumor / Q000175:diagnosis; D002277:Carcinoma / Q000175:diagnosis; D002766:Cholecystokinin / Q000378:metabolism; D003967:Diarrhea / Q000175:diagnosis; D004700:Endocrine System Diseases / Q000175:diagnosis*; D006801:Humans; D007008:Hypokalemia / Q000175:diagnosis; D008303:Malignant Carcinoid Syndrome / Q000175:diagnosis; D009369:Neoplasms / Q000175:diagnosis*; D010182:Pancreatic Diseases / Q000175:diagnosis; D010235:Paraganglioma / Q000175:diagnosis; D009384:Paraneoplastic Endocrine Syndromes / Q000175:diagnosis; D010455:Peptides / Q000378:metabolism; D011458:Prostaglandins E / Q000378:metabolism; D013004:Somatostatin / Q000378:metabolism; D013577:Syndrome; D013964:Thyroid Neoplasms / Q000175:diagnosis; D014660:Vasoactive Intestinal Peptide / Q000378:metabolism
chemical_list: D010455:Peptides; D011458:Prostaglandins E; D014660:Vasoactive Intestinal Peptide; D013004:Somatostatin; D002766:Cholecystokinin