Broad category: Hi. Thyroid illness takes 2 general forms: illnesses of thyroid function and illnesses of neoplasia. Thyroid function can be above (hyper) or below (hypo) normal, meaning thyroid hormone is over produced or under produced, respectively. Neoplasia, or tumors, can be benign or cancer. There are various causes of function illnesses. There are various types of thyroid malignancies.
Answered 11/7/2014
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