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You are here: Home > Health A to Z > Thyroid diseases



Thyroid diseases

Definition


Endocrine glands
Endocrine glands
Primary and secondary hypothyroidism
Primary and secondary hypothyroidism
Brain-thyroid link
Brain-thyroid link
Thyroid gland
Thyroid gland

 Definition  

The thyroid gland is located in the base of the neck on both sides of the lower part of the voice box (larynx) and upper part of the wind pipe (trachea). The thyroid produces chemicals (hormones) that help the body control metabolism. Thyroid hormone is also produced in response to another hormone secreted by the pituitary gland.

There are four main types of thyroid disease:

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

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

  • Anaplastic carcinoma of the thyroid
  • Chronic thyroiditis (Hashimoto's disease)
  • Colloid nodular goiter
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Hypothyroidism - primary
  • Hypothyroidism - secondary
  • Medullary thyroid carcinoma
  • Multiple endocrine neoplasia (MEN) II
  • Painless (silent) thyroiditis
  • Papillary carcinoma of the thyroid
  • Subacute thyroiditis
  • Thyroid cancer
  • Congenital goiter

Review date: 10/25/2006

Reviewed By: Robert Hurd, M.D., Department of Biology, College of Arts and Sciences, Xavier University, Cincinnati, OH. Review provided by VeriMed Healthcare Network.

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