A needle biopsy uses a needle to removal of a small piece of tissue or fluid for testing. In this case, the tissue is removed from the thyroid gland.

A thyroid biopsy is usually done when a lump is found in the thyroid. The lump is often called a thyroid nodule. These nodules are fairly common and usually do not need treatment. Only about 5% of nodules are cancerous.

The needle biopsy is usually done to see if a nodule is cancer. The biopsy may also be done if there is no nodule but the thyroid is enlarged.

Thyroid Nodule
Nucleus image
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