goiter%20nontoxic%20(simple)--%20diffuse%20-and-%20multinodular
GOITER NONTOXIC (SIMPLE): DIFFUSE & MULTINODULAR
Nontoxic goiter is thyroid enlargement unrelated to hypothyroidism, hyperthyroidism, inflammation or neoplasia.
Etiology is usually unknown. Some known causes include iodine deficiency, iodine excess, goitrogen ingestion, autoimmune disorders, thyroid hormone production defects and certain medications.
It is usually asymptomatic.
Symptomatic patient may present with painless neck swelling, cosmetic complaints, shortness of breath, sudden increase in goiter size with pain due to hemorrhage, larger goiter causing obstructive signs eg dysphagia, choking sensation and Pemberton's sign.

Introduction

  • Thyroid enlargement unrelated to hypothyroidism, hyperthyroidism, inflammation or neoplasia

Etiology

  • Etiology is usually unknown
    • Known causes include: Iodine deficiency, iodine excess, goitrogen ingestion, autoimmune disorders, thyroid hormone production defects & certain medications

Signs and Symptoms

  • Usually asymptomatic
  • Symptomatic patient may present w/ the following:
    • Painless neck swelling
    • Cosmetic complaints
    • Shortness of breath
    • Sudden increase in goiter size w/ pain due to hemorrhage
    • Large goiter causing obstructive signs eg dysphagia, choking sensation, stridor, plethora (venous congestion)
    • Pemberton’s sign - faintness w/ facial congestion, external jugular venous blockage when both arms are raised above head (an action that draws the thyroid into the thoracic inlet)
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