Thyroid Hormone Tutorial: Thyroid Pathology

  title={Thyroid Hormone Tutorial: Thyroid Pathology},
  author={Jack Deruiter},
Thyroid disorder is a general term representing several different diseases involving thyroid hormones and the thyroid gland. Thyroid disorders are commonly separated into two major categories, hyperthyroidism and hypothyroidism, depending on whether serum thyroid hormone levels (T4 and T3) are increased or decreased, respectively. Thyroid disease generally may be sub-classified based on etiologic factors, physiologic abnormalities, etc., as described in each section below.