PMC8170468_01
(A) Ultrasonography showed bilateral thyroid reduction and multiple nodules (<0.5 cm in diameter) in the left lobe with normal blood flow signals. (B) Ultrasonography showed thyroid enlargement with diffuse reduction in gland echo and abundant blood flow signals.
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A thyroid function test showed slight hypothyroidism, and thyroid ultrasonography revealed bilateral thyroid reduction with multiple nodules (<0.5 cm in diameter) in the left lobe ( Figure 1A ). Ultrasonography revealed that the thyroid gland was significantly larger than before ( Figure 1B ).