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Thyroid Nodules
(Thyroid Nodule)

Thyroid Nodules Overview

  • Nodules are simply lumps which are either solid or fluid-filled. The main function of the thyroid gland in the neck is to make thyroid hormone, which is essential for normal growth and metabolism.

  • Autopsy studies have revealed that up to 50% of all adults die carrying at least one thyroid nodule. These people may or may not have been aware of the presence of their thyroid nodules.

  • Thyroid nodules are found more commonly as people age.

  • Most of these thyroid nodules are benign and not cancerous.

  • Only 5% of all thyroid nodules will be discovered to be thyroid cancer.
     
    • Finding cancer in a thyroid nodule is more likely in a person under the age of 30 or over the age of 60.

    • However, it is important to remember that only a small percentage of people with thyroid cancer die as a result of their thyroid cancer.

Picture of the Thyroid Gland



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Thyroid Nodules - How Was Diagnosis Established

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Thyroid Nodules

Hypothyroidism »

Hypothyroidism Overview

Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormone. Thyroid hormones affect the metabolic processes of the body. Hypothyroidism can be caused by conditions of the thyroid as well as other disease which may indirectly affect the thyroid. Women are affected by hypothyroidism more than men, especially as they age. The incidence of hypothyroidism increases significantly in the elderly. Low thyroid hormone levels decrease metabolism (how energy is used), and increase the risk of other health issues such as heart disease and problems of pregnancy.

Hypothyroidism Causes in Adults

Common causes of hypothyroidism in adults include:

Autoimmune Thyroiditis (Hashimoto's Thyroiditis)

This inherited condition is the most common cause of hypothyroidism in adults. Hashimoto's thyroiditis is an autoimmune disease in which the body's immune system,...

Read the Hypothyroidism article »



Read What Your Physician is Reading on eMedicine

Thyroid Nodule »

Nodular disease of the thyroid gland is prevalent in the United States.

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