A goiter is an enlargement of the thyroid gland. It is not cancer.
See also:
Simple goiter
There are different kinds of goiters. A simple goiter can occur for no known reason, or when the thyroid gland is not able to produce enough thyroid hormone to meet the body's needs. The thyroid gland makes up for this by becoming larger.
There are two types of simple goiter:
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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Source: ADAM Encyclopedia
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