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Radioiodine imaging in the primary care of thyroid disease.

AbstractThere are few indications for ordering a RAIU or a thyroid scan in a primary care setting. In suspected hyperthyroidism, a sensitive thyrotropin assay should be the initial test ordered. If the thyrotropin level is low or suppressed, and the diagnosis of thyroiditis vs Graves' hyperthyroidism is not clear, a RAIU test is appropriate. In the case of a euthyroid nodular goiter, fine-needle aspiration is the most accurate initial test to evaluate for malignancy. The primary indication for a scan in the case of a euthyroid nodular goiter is a low or suppressed thyrotropin level, because malignancy is rare in a hot nodule. If thyroid cancer or congenital hypothyroidism is encountered, referral to an endocrinologist is probably the most expedient and cost-effective way to proceed.
AuthorsSharon Y Wu, Roy E Weiss (Affiliation: Rush University Medical Center, Chicago, USA.)
JournalPostgraduate medicine (Postgrad Med) 2006 Jul-Aug Vol. 119 Issue 2 Pg. 70-7 ISSN: 0032-5481 [Print] United States
PMID16961055 (Publication Type: Journal Article, Review)
Chemical References
  • Iodine Radioisotopes
Topics
  • Humans
  • Iodine Radioisotopes (diagnostic use)
  • Thyroid Diseases (radionuclide imaging)

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