title: Identification of Warthin's tumor with technetium-99m pertechnetate.
abstract: Salivary gland imaging with Tc-99m pertechnetate is a useful procedure for evaluating the functional status of salivary glands. The only neoplasms of salivary glands known to consistently concentrate Tc-99m pertechnetate are Warthin's tumor and oncocytoma. In the five cases presented, increased concentration of Tc-99m pertechnetate was seen in these tumors of the parotid glands. This finding was useful for preoperative identification of Warthin's tumor. During this investigation, the concentration of Tc-99m pertechnetate in Warthin's tumor varied by histologic type. Thus, a dynamic study may be helpful in evaluating the accumulation rate of Tc-99m pertechnetate into this tumor type. Because the retention of Tc-99m pertechnetate in tumor following stimulation is useful for the diagnosis of Warthin's tumor, a washout image is of importance in establishing this diagnosis.
authors.affiliation: Department of Radiology, Kanagawa Dental College, Yokosuka, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Higashi
authors.forename: H
authors.initials: H
authors.lastname: Murahashi
authors.forename: H
authors.initials: H
authors.lastname: Ikuta
authors.forename: Y
authors.initials: Y
authors.lastname: Mori
authors.forename: Y
authors.initials: Y
authors.lastname: Watanabe
mesh_terms: D000235:Adenolymphoma / Q000000981:diagnostic imaging*; D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D010306:Parotid Gland / Q000000981:diagnostic imaging; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m
chemical_list: D013670:Sodium Pertechnetate Tc 99m