A Clinical Evaluation of the Thyroid in Health and Disease - Thyroid Gland

Intent of Program

Embryology of the Thyroid Gland

Lingual Thyroid (failure of descent)

Lingual Thyroid (failure of descent)

Lingual Thyroid (failure of descent)

Thyroglossal Duct Cyst

Thyroglossal Duct Cyst

Thyroid Hormone Synthesis and Release

Iodide Metabolism

Diffusely Enlarged Thyroid

Diffusely Enlarged Thyroid

Multinodular Goiter

Huge Multinodular Goiter

Superior Vena Caval Obstruction (Pemberton's Sign) due to Hashimoto's thyroiditis

Superior Vena Caval Obstruction due to Colloid Goiter

Hereditary Defects in Thyroid Hormone Synthesis or Secretion

Mechanism of Iodine Deficiency in United States

Consequences of Long-Standing Moderate to Severe Iodine Deficiency in Normal Person

Excessive Iodine Intake

Example of Effects on Thyroid From Excessive Iodine Intake

Consequences of Moderate Iodine Excess in Normal Person

Consequences of Moderate Iodine Excess in Person with Damaged Thyroid Gland

Effect of Dietary Iodine Upon Amiodarone Induced Alterations in Thyroid Function

Amiodarone-Induced Thyrotoxicosis (AIT) *

Treatment of Amiodarone-Induced Thyrotoxicosis (AIT) *

Components of Total Serum Thyroxine

Relationship Between TSH and FT4

Free T4 Determines Degree of Hypothyroidism

Euthyroid Hypothyroxinemia Decreased Free T4

Euthyroid Hypothyroxinemia Decreased Free T4

Euthyroid Hypothyroxinemia Decreased Thyroxine Binding Globulin

Euthyroid Hypothyroxinemia Decreased Thyroxine Binding Globulin

Pathophysiology of Low Free T4 in Sepsis

Relationship of Serum T3 to IL-6, TNFa and Cortisol in Nonthyroidal Illness Syndrome*

Euthyroid Hyperthyroxinemia

Reasons for Increased TBG

Euthyroid Hyperthyroxinemia Alterations in Thyroid Binding Globulin (TBG)

Increased Albumin Binding Affinity

Euthyroid Hyperthyroxinemia Increased Total T4 and Normal Free T4

Euthyroid Hyperthyroxinemia Increased Total T4 and Increased Free T4

Conditions Sometimes Associated with Thyrotoxicosis

Euthyroid Hyperthyroxinemia Increased Free T4 and Normal Total T4