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case_images: Ultrasound of the thyroid gland showing heterogenous echogenicity of the tissue parenchyma (A) and increased vascularity (B).
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case_images: A thyroid ultrasound revealed heterogenous echogenicity and increased vascularity (Figure 1).
case_images: Thyroid scan showing increased pertechnetate uptake.
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case_images: A pertechnetate uptake scan showed elevated thyroid uptake, consistent with Graves' disease (Figure 2).
case_images: Histopathologic examination of the excised thyroid showed diffuse hyperplasia characterized by prominent scalloping in the thyroid follicles (H&E, 10x).
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case_images: Histological diagnosis was Graves' disease (Figure 3).
case_images: Histopathologic examination of the thyroid further revealed a background of chronic lymphocytic thyroiditis with lymphoid aggregates complete with germinal centres (H&E, 10x) (A) and oncocytic metaplasia with thyroiditis (H&E, 200x) (B).
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case_images: Further analysis revealed chronic lymphocytic thyroiditis and oncocytic metaplasia (Figure 4).