Scintigraphic manifestations of thyrotoxicosis.
Publication/Presentation Date
1-1-2003
Abstract
The term thyrotoxicosis refers to the clinical syndrome of increased systemic metabolism that results when the serum concentrations of free thyroxine, free triiodothyronine, or both are elevated. The term hyperthyroidism refers to overactivity of the thyroid gland with a resultant increase in thyroid hormone synthesis and release into the systemic circulation. These terms are not interchangeable, since thyrotoxicosis can develop in thyroid conditions that are not associated with increased thyroid function, such as thyroiditis, or in so-called factitious hyperthyroidism. The clinical signs and symptoms of thyrotoxicosis are virtually identical regardless of the cause. However, in a given patient, every attempt should be made to determine the exact cause of the thyrotoxicosis, as this in turn determines the prognosis and treatment. Since thyroid scintigraphy demonstrates the functional state of the thyroid gland, it should be used, in conjunction with determination of radioactive iodine uptake, as the imaging modality of choice for diagnosis of thyrotoxicosis. Although the scintigraphic features of several of the thyroid disorders that cause thyrotoxicosis may overlap, their recognition helps narrow the differential diagnosis, thereby guiding the referring physician in the work-up and management of this disorder.
Volume
23
Issue
4
First Page
857
Last Page
869
ISSN
1527-1323
Published In/Presented At
Intenzo, C. M., dePapp, A. E., Jabbour, S., Miller, J. L., Kim, S. M., & Capuzzi, D. M. (2003). Scintigraphic manifestations of thyrotoxicosis. Radiographics : a review publication of the Radiological Society of North America, Inc, 23(4), 857–869. https://doi.org/10.1148/rg.234025716
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
12853661
Department(s)
Administration and Leadership
Document Type
Article