Radionuclide imaging in otolaryngology-head and neck surgery. Radionuclide imaging provides both qualitative and quantitative information that can have dramatic effects on patient management in diseases of the head and neck. The general concepts of nuclear medicine imaging, including radiopharmaceuticals and radiation effects, are discussed. The principles and techniques of thyroid, parathyroid, bone, and salivary radionuclide imaging studies will be reviewed. The intent of this article is to provide a concise and current review of head and neck radionuclide imaging that will be useful in the day-to-day practice of otolaryngology-head and neck surgery. 