Abstract
Head and neck surgeons are involved in the diagnosis and therapy of thyroid disease with increasing frequency. The surgical techniques utilized for the management of thyroid disease are well known by most head and neck surgeons and will not be discussed in this paper. It is the head and neck surgeons' knowledge of the physiology, medical disorders, and the proper evaluation of the patient with thyroid disease that is most open to criticism. This paper reviews thyroid physiology, basic tests used to assess thyroid function in health and disease, thyroiditis, thyroid carcinomas, and nodules of the thyroid gland. The signs, symptoms, laboratory findings, and the methods of medical and surgical therapy are discussed for each of these disorders. The supplement is not intended to provide expertise, but will provide a general and basic knowledge of thyroid disease.