Fig. 1From: HLA typing of patients who developed subacute thyroiditis and Graves’ disease after SARS-CoV-2 vaccination: a case reportThyroid ultrasonograms of two patients. Thyroid ultrasonograms of patient 1 (A) and patient 2 (B), indicating a focal hypoechoic area with decreased blood flow in the right lobe of the thyroid gland that coincided with the site of tenderness (arrow). Thyroid scintigram with 99mtechnetium pertechnetate of patient 2 (C) that was obtained at the recurrence of thyrotoxicosis shows the accumulation of an artificial radioactive element in the thyroid gland (arrow)Back to article page