immunoreactivity for endocrine peptides ( serotonin , gastrin , somatostatin , insulin , corticotropin , calcitonin , neurotensin , vasoactive intestinal peptide , and bombesin ) , cytoskeletal proteins ( high and low molecular weight keratins ) , and tumor differentiation markers ( chromogranin , neuron-specific enolase , carcinoembryonic antigen , s100 protein , and grimelius stain ) was sought on nine cervical and one vaginal poorly differentiated small-cell carcinoids .
C0041365
tumor
C0007082
carcinoembryonic antigen