Imaging of multiple bilateral parotid gland oncocytomas

Clin Nucl Med. 1995 Jun;20(6):515-8. doi: 10.1097/00003072-199506000-00010.


Oncocytoma of the salivary glands is a rare tumor that usually follows a benign course and, in most cases, can be cured by surgical resection. The authors report a rare case of multiple bilateral parotid oncocytomas that presented clinically with two palpable parotid masses. Both CT and MRI scans demonstrated multiple masses in each parotid gland. The tumors exhibited intense uptake and prolonged retention of Tc-99m pertechnetate. The diagnosis was confirmed by fine needle aspiration. Sialoscintigraphy is a simple and noninvasive procedure that can usually separate benign entities like Warthin tumor and oncocytoma of the salivary glands from malignant tumors, and significantly affect the course of treatment.

Publication types

  • Case Reports

MeSH terms

  • Adenoma, Oxyphilic / diagnostic imaging*
  • Aged
  • Humans
  • Male
  • Neoplasms, Multiple Primary / diagnostic imaging*
  • Parotid Gland / diagnostic imaging*
  • Parotid Neoplasms / diagnostic imaging*
  • Radionuclide Imaging
  • Sodium Pertechnetate Tc 99m


  • Sodium Pertechnetate Tc 99m