**1. Introduction**

Thyroid storm, also known by its synonyms thyroid crisis, thyrotoxic storm, or thyrotoxic crisis, is an extremely rare but life-threatening endocrine emergency. It is an acute exaggerated clinical manifestation of thyrotoxic state [1]. It was first described by Frank Howard Lahey in 1926 as "the crisis of exophthalmic goiter" [2]. Till date, clinicians are puzzled to accurately describe the signs and symptoms of thyroid storm as it involves almost all systems of the body. Accurately diagnosing the condition is very difficult, and groups around have been working to define a clear diagnostic criterion based on universal clinical parameters [3]. Diagnosing the storm early is crucial in order to improve the morbidity and mortality associated with it.
