PMC9388854_01
PMC9388854_02
PMC9388854_03
Thyroid ultrasound and thyroid emission computed tomography of three patients. The black arrow showed the radioactive distribution defects in the thyroid lobe. (A,D) Refers to patient 1, (B,E) refers to patient 2, and (C,F) refers to patient 3.
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F1
Thyroid ultrasound (US) demonstrated hypoechoic areas in the enlarged right lobe of the thyroid (Figure 1A). Thyroid emission computed tomography (ECT) showed radioactive distribution defects in the right thyroid lobe (Figure 1D). Thyroid ECT indicated radioactive distribution defects in the right thyroid lobe (Figure 1E). Thus, a diagnosis of SAT combined with Graves' disease was made, and methimazole (5 mg/day) and selenium yeast (100 mug/12 h) were started on 24 July 2021. The US revealed a scattered distribution of hypoechoic areas in the enlarged left lobe of the thyroid (Figure 1B). Thyroid US illustrated the enlarged right lobe of the thyroid (Figure 1C). Thyroid ECT showed radioactive distribution defects in the right thyroid lobe (Figure 1F).
The trend of indicators in laboratory tests. The change of TSH, FT3, FT4, WBC, ESR, and CRP during the SAT period were displayed in (A-F). (A) The ordinate axis on the right side is used only for patient 3 due to the large numerical span.
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F2
Thyroid function tests and inflammatory markers became normal during her follow-up (Figure 2). The patient was still treated with prednisone 2.5 mg/12 h, and methimazole 2.5 mg/day was added for the diagnosed Graves' disease (Figure 2).