Asymmetric diffuse thyroid uptake on 18 F-FDG PET/CT in patient with subacute thyroiditis: Case report and literature review

A 48-year-old man with an intermittent fever of 39.0 C for more than three weeks underwent computed tomography (CT) and blood testing, which revealed no clues. Antibiotics wereadministered, but his condition did not improve. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomogr...

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Bibliographic Details
Published in:	Hellenic journal of nuclear medicine
Main Authors:	Kaida, Hayato, Wakana, Miyuki, Yoshida, Sawa, Matsukubo, Yuko, Ishii, Kazunari
Format:	Journal Article
Language:	English
Published:	Greece 04-08-2023
Online Access:	Get full text
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Summary:	A 48-year-old man with an intermittent fever of 39.0 C for more than three weeks underwent computed tomography (CT) and blood testing, which revealed no clues. Antibiotics wereadministered, but his condition did not improve. Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography ( F-FDG PET/CT) showed right-lobe-dominant diffuse thyroid uptake. On technetium-99m ( Tc) pertechnetate scintigraphy, the thyroid gland could not be visualized, and he was diagnosed with subacute thyroiditis (SAT). When asymmetric F-FDG diffuse thyroid uptake on PET/CT is observed in a patient with a fever of unknown origin (FUO), SAT may need to be considered.
ISSN:	1790-5427