the presence of somatostatin ( srif ) in the neoplastic epithelial cells of certain warthin 's tumors arising in the human parotid gland was found immunohistochemically , whereas the other parotid gland tumors , such as pleomorphic adenoma , oxyphilic adenoma , mucoepidermoid tumor , adenocarcinoma , and adenoid cystic carcinoma , did not show positive immunoreactivity for srif .
C1513959
neoplastic epithelial cells
C0001429
warthin 's tumors