Reference Index - Disease & Conditions

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Endocrine glands
Endocrine glands


Primary and secondary hypothyroidism
Primary and secondary hypothyroidism


Brain-thyroid link
Brain-thyroid link


Thyroid gland
Thyroid gland


Thyroid diseases

Definition:

The thyroid gland is located in the front of the neck, just below the voice box (larynx). It produces chemicals (hormones) that help the body control metabolism. Thyroid hormone is normally produced in response to another hormone released by the pituitary gland.

There are four main types of thyroid disease:

  • Hyperthyroidism -- too much thyroid hormone
  • Hypothyroidism -- too little thyroid hormone
  • Benign (noncancerous) thyroid disease
  • Thyroid cancer

For information about a specific type of thyroid disease, see one of the following:



Causes, incidence, and risk factors:



Symptoms:



Signs and tests:



Treatment:



Support Groups:



Expectations (prognosis):



Complications:



Calling your health care provider:



Prevention:



References:

Ladenson P, Kim M. Thyroid. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 244.




Review Date: 5/23/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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