Clinical presentation: A 33-year-old man was referred for evaluation of thyroid nodule. The nodule was discovered on evaluation performed because the recovery from a myocarditis was too slow. The myocarditis has been diagnosed for half a year.

Palpation: Both nodules contained a firm nodule.

Functional state: euthyroidism (TSH 3.90 mIU/L, FT4 17.6 pM/L).

Ultrasonography. The thyroid was minimally hypoechogenic. There was a hypoechogenic nodule presenting numerous microcalcifications in the right while a minimally hypoechogenic lesion presenting halo sign in the left lobe.

Cytology was performed from both lesions and resulted in papillary carcinoma and benign colloid goiter, right nodule and left nodule, respectively.

Histopathology disclosed papillary carcinoma in the right nodule while hyperplastic nodule in the left nodule. Hashimoto's thyroiditis was described in the non-nodular tissue.