Final answer:
Thyrotoxicosis with thyrotoxic storm is a condition characterized by hyperthyroidism with severe symptoms. It is commonly caused by autoimmune disorders such as Graves' disease.
Step-by-step explanation:
Thyrotoxicosis with thyrotoxic storm is a condition characterized by hyperthyroidism with severe symptoms. Thyrotoxic storm is a life-threatening complication of hyperthyroidism that can include symptoms such as rapid and irregular heartbeat, heat intolerance, weight loss, goiter, and exophthalmia. It is commonly caused by autoimmune disorders such as Graves' disease, where autoantibodies target thyroid-stimulating hormone receptors, resulting in overstimulation of the thyroid.