Of note, the terms “thyrotoxicosis” (status of excess thyroid hormones of any cause) and “hyperthyroidism” (excess thyroid hormones due to an overactive thyroid gland, e.g., Graves’ disease) are used interchangeably in many oncological studies, which may lead to the underestimation of ir Graves’ disease, because clinicians omit the conduction of laboratory tests and imaging procedures that are essential to specifying the cause of the status of excess thyroid hormones. The gene discussed is TG; the disease is hyperthyroidism.