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Endocrine glands
Endocrine glands


Thyroid gland biopsy
Thyroid gland biopsy


Definition:

A fine needle aspiration of the thyroid gland is a procedure to remove thyroid cells for examination. The thyroid is located in front of the trachea (windpipe) at the top of the neck.



Alternative Names:

Thyroid nodule fine needle aspirate biopsy; Biopsy - thyroid - skinny-needle; Skinny-needle thyroid biopsy



How the test is performed:

This test may be done in the health care provider's office or in a hospital. Usually numbing medicine (anesthesia) is not needed because the needle is very thin.

You will lie on your back with a pillow under your shoulders and your neck extended. The biopsy site is cleaned. A thin needle is inserted into the thyroid, and a sample of thyroid cells and fluid are removed. The needle is then taken out.

Pressure will be applied to the biopsy site to stop any bleeding. The site will be covered with a bandage.



How to prepare for the test:

Tell your health care provider if you have drug allergies , bleeding problems, or are pregnant. You should also make sure your health care provider has a current list of all medications you take, including herbal remedies and over-the-counter drugs.



How the test will feel:

You may feel a sting as the needle is inserted.



Why the test is performed:

This is a test to diagnose thyroid disease or thyroid cancer . It is often used to get information on thyroid lumps that can either be felt by the doctor or seen by ultrasound.



Normal Values:

The thyroid tissue is normal in structure and the cells appear noncancerous under a microscope.



What abnormal results mean:

Abnormal results may mean:



What the risks are:

The main risk is bleeding into or around the thyroid gland. If bleeding is severe, the windpipe (trachea) may be compressed. This complication is rare.




Review Date: 5/15/2008
Reviewed By: Robert A. Cowles, MD, Assistant Professor of Surgery, Columbia University College of Physicians and Surgeons, New York, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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