PMC3226617_01
CT-scan images showing a thymus enlargement before (A) and after (B) treatment for hyperthyroidism due to Graves' disease, with remarkable shrinkage of the thymus (arrows).
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A thoracic computed tomography (CT) scan revealed a homogeneous mass with no adjacent structure invasion or calcification at the topography of the thymus enlargement (Figure 1A). After six months of thyroid hormonal control, a new CT revealed marked thymus shrinkage (Figure 1B).