Subclinical hyperthyroidism: current concepts and scintigraphic imaging.
Publication/Presentation Date
9-1-2011
Abstract
Subclinical hyperthyroidism is defined as normal serum free thyroxine and a free triiodothyronine level, with a thyroid-stimulating hormone level suppressed below the normal range and is usually undetectable. Although patients with this diagnosis have no or few signs and symptoms of overt thyrotoxicosis, there is sufficient evidence that it is associated with a relatively higher risk of supraventricular arrhythmias as well as the acceleration or the development of osteoporosis. Consequently, the approach to the patient with subclinical hyperthyroidism is controversial, that is, therapeutic intervention versus watchful waiting. Regardless, it is imperative for the referring physician to identify the causative thyroid disorder. This is optimally accomplished by a functional study, namely scintigraphy. Recognition of the scan findings of the various causes of subclinical hyperthyroidism enables the imaging specialist to help in diagnosing the underlying condition causing thyroid-stimulating hormone suppression thereby facilitating the workup and management of this thyroid disorder.
Volume
36
Issue
9
First Page
107
Last Page
113
ISSN
1536-0229
Published In/Presented At
Intenzo, C., Jabbour, S., Miller, J. L., Ahmed, I., Furlong, K., Kushen, M., Kim, S. M., & Capuzzi, D. M. (2011). Subclinical hyperthyroidism: current concepts and scintigraphic imaging. Clinical nuclear medicine, 36(9), e107–e113. https://doi.org/10.1097/RLU.0b013e3182175477
Disciplines
Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods
PubMedID
21825836
Department(s)
Administration and Leadership
Document Type
Article