What is the toxic thyroid adenoma?

There are two kinds of thyroid adenoma: a situation that can cause hyperthyroidism, thyroid adenoma to scan showed that the hot nodule (radioisotope distribution concentration), which called toxic thyroid adenoma; another is not cause hyperthyroidism, thyroid adenoma scan showed that the warm nodules (with the radioisotope distribution similar to normal thyroid tissue) or cold nodules (normal thyroid tissue distribution of radioisotopes), which is not toxic thyroid gland : It is a simple thyroid adenoma. Toxic thyroid adenoma is due to enhancements in adenoma, a large amount of thyroid hormone, which led to the performance of hyperthyroidism. Toxic thyroid adenoma was particularly prevalent in women, 30 to 40 years old. Adenomas are usually single, a few more than one. Patients with symptoms of hyperthyroidism, can often be found in search of thyroid nodules are generally larger, and often a few centimetres in size. Determination of serum T3 and T4 levels increased to T3 increased more obvious. Nodular thyroid scan for hot nodules confirmed, but around the radioisotope thyroid tissue or reduce distribution often lack.