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Neuroimaging Clin N Am. 1996 May;6(2):435-59.

Parathyroid and thyroid imaging.

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Department of Radiology, University of Pennsylvania Medical Center, Philadelphia, USA.


Whether to perform preoperative imaging for parathyroid adenomas is controversial in the "virgin neck" because surgery without imaging is successful in more than 90% of cases. To detect ectopic adenomas or unresected adenomas after failure of initial surgery often requires both a functional study, such as technetium-99m sestamibi nuclear scintigram, and a morphologic study, such as ultrasonography, computed tomography, or magnetic resonance imaging for anatomic landmarks. Most dominant thyroid masses require fine-needle aspiration for diagnosis. Nuclear scintigraphy is useful when the lesion is warm or hot, making a malignancy less likely, but cold lesions are nonspecific. Unless a mass is shown to infiltrate the surrounding soft tissue or spread to lymph nodes, the findings on most cross-sectional imaging studies are also nonspecific.

[Indexed for MEDLINE]

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