First examination (first row):

Clinical presentation: a 32-year-old woman was referred for an evaluation of typical complaints suggesting hyperthyroidism.

Palpation: no abnormality.

Functional state: hyperthyroidism with TSH 0.001 mIU/L, FT4 52.6 pM/L, FT3 21.6 pM/L.

Ultrasonography: the thyroid was moderately hypoechogenic without any nodule. The vascularization was increased.

Clinical diagnosis: hyperthyroidism caused by Graves-Basedow's disease.

We administered daily 30 mg methimazole to the patient.

Second examination 5 weeks later (2nd row):

Clinical presentation: most of the original complaints have resolved.

Palpation: no abnormality.

Functional state: subclinical hyperthyroidism with TSH-level 0.02 mIU/L, FT4 12.1 pM/L, FT3 4.08 pM/L.

Ultrasonography: the sonographic pattern did not change over 5 weeks.

Clinical diagnosis: treated hyperthyroidism caused by Graves-Basedow's disease in euthyroid state.

The dose of the methimazole was decreased to daily 10 mg.

Ten months after initial examination (3rd row):

Clinical and laboratory data: the patient was well and euthyroid on daily 5 mg methimazole and 50 microgram levo-tiroxine.

Ultrasonography: the thyroid became echonormal with a 10% echogenicity index. The vascularization was average in the right and decreased in the left lobe.