title: Hormone-negative, chromogranin A-positive endocrine tumors.
authors.affiliation: Department of Medicine, University of California, San Diego.
authors.forename: R E
authors.initials: RE
authors.lastname: Sobol
authors.forename: V
authors.initials: V
authors.lastname: Memoli
authors.forename: L J
authors.initials: LJ
authors.lastname: Deftos
mesh_terms: D007516:Adenoma, Islet Cell / Q000032:analysis; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000032:analysis*; D002116:Calcitonin / Q000097:blood; D002277:Carcinoma / Q000032:analysis; D053379:Chromogranin A; D002864:Chromogranins / Q000032:analysis*; D004700:Endocrine System Diseases / Q000175:diagnosis / Q000378:metabolism*; D005260:Female; D006728:Hormones / Q000097:blood*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000032:analysis* / Q000175:diagnosis; D009419:Nerve Tissue Proteins / Q000032:analysis*; D010187:Pancreatic Hormones / Q000097:blood; D010190:Pancreatic Neoplasms / Q000032:analysis; D010908:Pituitary Hormones, Anterior / Q000097:blood; D010911:Pituitary Neoplasms / Q000032:analysis; D013964:Thyroid Neoplasms / Q000032:analysis
chemical_list: D014408:Biomarkers, Tumor; C506150:CHGA protein, human; D053379:Chromogranin A; D002864:Chromogranins; D006728:Hormones; D009419:Nerve Tissue Proteins; D010187:Pancreatic Hormones; D010908:Pituitary Hormones, Anterior; D002116:Calcitonin