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KMID : 1011720170100010042
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International Journal of Thyroidology
2017 Volume.10 No. 1 p.42 ~ p.45
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Atypical Thyroiditis Following Influenza B Infection
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Yu Tae-Yang
Lee Jae-Hoon
Kim Hun-Soo
Kim Ha-Young
Cho Chung-Gu
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Abstract
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Viral infections are known to be a predisposing factor for subacute (De Quervain’s) thyroiditis. In this report, we document a novel case of thyroiditis, with an atypical presentation, following an influenza B infection. A 13-year-old previously healthy female visited the outpatient clinic complaining of right neck pain. She had been diagnosed with an influenza B infection at a local clinic 3 weeks earlier. All laboratory tests were normal. A thyroid ultrasound showed an ill-defined hypoechoic mass (1.0×0.5×1.5 cm) in the right lower thyroid, and scintigraphy of the thyroid with Technetium-99m (99m-Tc) demonstrated the normal uptake of the radiotracer. Fine-needle aspiration from the nodule showed the presence of a few neutrophils. To the best of our knowledge, this is the first case of atypical thyroiditis associated with an influenza B infection described in the literature. Influenza B infection should be considered as a possible cause of atypical thyroiditis.
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KEYWORD
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Influenza B, Infection, Thyroiditis
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