title: Ectopic secretion of calcitonin as a tumor marker (review).
abstract: The significance of the hormone calcitonin, ectopically produced, is evaluated as a tumour marker. Since 40 percent of an unselected sample of tumours is hypercalcitoninaemic, calcitonin may be useful as a tumour marker, though absence of specificity limits its diagnostic value.
mesh_terms: D001078:APUD Cells / Q000378:metabolism; D002116:Calcitonin / Q000378:metabolism*; D002272:Carcinoembryonic Antigen / Q000032:analysis; D006801:Humans; D008954:Models, Biological; D009363:Neoplasm Proteins / Q000032:analysis*; D009369:Neoplasms / Q000175:diagnosis* / Q000378:metabolism; D009384:Paraneoplastic Endocrine Syndromes / Q000175:diagnosis* / Q000378:metabolism; D000509:alpha-Fetoproteins / Q000032:analysis
chemical_list: D002272:Carcinoembryonic Antigen; D009363:Neoplasm Proteins; D000509:alpha-Fetoproteins; D002116:Calcitonin