The term subacute thyroiditis (SAT) describes a self-limited inflammatory disorder and the most common cause of thyroid pain, probably of viral origin.^[1-5] It was first reported by Mygind^[6] in 1895, who described 18 cases of “thyroiditis akuta simplex.” The name De Quervain traditionally has been associated with this condition, however, probably because he described the pathology of this disorder thoroughly in 1904^[7] and again in 1936.^[8] SAT occurs in 5% of patients with clinical thyroid disease^[9]and frequently follows an upper respiratory tract infection. Its incidence correlates with the peak incidence of …