Thyroid Problems

Equip yourself. Learn about thyroid problems.

Thyroid Adenoma

A thyroid adenoma is a benign thyroid tumor. Also known as a solitary thyroid nodule, the typical single node separates it from a multinodal goiter.

Thyroid adenomas may present no clinical symptoms, but if instead they do, symptomatic hyperthyroidism may result. Those that do not display symptoms can be known as warm or cold adenomas, while those that do (via excessive production of thyroid hormone) are referred to as hot.


Thyroid adenomas are actually quite common, as roughly ten percent of the population is noted to have single thyroid nodules. Generally, a biopsy will show this to be an adenoma. However, since in a small portion of these cases there actually is a malignancy, the testing is typically done.

Other thyroid tumors

Thyroid adenoma is different than many other thyroid tumors which are in fact cancerous (malignant). Thyroid cancers include:

Anaplastic cancer
Follicular cancer
Medullary cancer
Papillary cancer

Other types of adenomas

In addition to those that occur in the thyroid gland, adenomas can also show up in other areas of the body. Below are some other locations in which they can appear. There are also other possibilities even beyond these types.

Adrenal - relatively common, but only about one out of 10,000 is actually malignant
Colon - another common form, usually noticed by colonoscopy
Kidney - known as renal adenomas, these are generally without symptoms and small
Liver - this rare kind is known as a hepatocellular adenoma
Pituitary - this form normally requires surgery for treatment

Please keep in mind that diagnosis and a treatment recommendation are to be made by a doctor. If you are concerned regarding any such issues, please consider talking with such a person. Do not rely on the information provided on this page to take the place of professional advice or assistance.