INTRODUCTION
The inflammation and inflammatory responses caused by the Coronavirus
Disease 2019 (COVID-19) involve the thyroid1. Evidence
suggests that COVID-19 involves the hypothalamic-pituitary-thyroid axis.
Various manifestations of thyroid disease have been observed in COVID-19
cases, including hypothyroidism, thyrotoxicosis, and nonthyroidal
illness syndrome2. Thyrotoxicosis, which has been
observed during the initial phase of subacute thyroiditis and Graves’
disease, can be caused by COVID-19 as well2-4. Thyroid
storm is a life-threatening condition accompanied by severe clinical
manifestations of thyrotoxicosis; however, it has not yet been reported
in COVID-19 cases. Nevertheless, due to the importance of thyroid storm,
it is necessary to consider the coincidence of this condition in
COVID-19 cases.