Fine needle aspiration of the thyroid

定义

Fine needle aspiration of the thyroid gland is a procedure to remove thyroid cells for examination. The thyroid gland is a butterfly-shaped gland located inside the front of the lower neck.

选择的名字

Thyroid nodule fine needle aspirate biopsy; Biopsy - thyroid - skinny-needle; Skinny-needle thyroid biopsy; Thyroid nodule - aspiration; 甲状腺癌 - aspiration

How the Test is Performed

This test may be done in the health care provider's office or in a hospital. Numbing medicine (anesthesia) may or may not be used. Because the needle is very thin, you may not need this medicine.

You lie on your back with a pillow under your shoulders with your neck extended. The biopsy site is cleaned. A thin needle is inserted into your thyroid, where it collects a sample of thyroid cells and fluid. The needle is then taken out. If the provider cannot feel the biopsy site, they may use ultrasound or a CT scan to guide where to put the needle. Ultrasound and CT scans are painless procedures that show images inside the body.

Pressure is applied to the biopsy site to stop any bleeding. The site is then covered with a bandage.

How to Prepare for the Test

Tell your provider if you have 药物过敏, bleeding problems, or are pregnant. 也, make sure your provider has a current list of all medicines you take, including herbal remedies and over-the-counter drugs.

A few days to a week before your biopsy, you may be asked to temporarily stop taking blood-thinning medicines. The drugs you may need to stop taking include:

• 阿斯匹林
• 氯吡格雷
• Ibuprofen (Advil, Motrin)
• Naproxen (Aleve, Naprosyn)
• 华法林(香豆素)

Be sure to talk with your provider before stopping any drugs.

考试的感觉如何

If numbing medicine is used, you may feel a sting as the needle is inserted and the medicine is injected.

As the biopsy needle passes into your thyroid, you may feel some pressure, but it should not be painful.

You may have slight discomfort in your neck afterward. You may also have slight bruising, which soon goes away.

Why the Test is Performed

This is a test to diagnose thyroid disease or 甲状腺癌. It is often used to find out if thyroid 结节 that your provider can feel or seen on an ultrasound are noncancerous or cancerous.

正常的结果

A normal result shows the thyroid tissue looks normal and the cells do not appear to be cancer under a microscope.

What Abnormal Results Mean

Abnormal results may mean:

• 甲状腺疾病, such as goiter or thyroiditis
• 良性肿瘤
• 甲状腺癌

风险

The main risk is bleeding into or around the thyroid gland. With severe bleeding, there may be pressure on the windpipe (trachea). 这个问题很少见.

参考文献

Ahmad FI, Zafereo ME, Lai SY. Management of thyroid neoplasms. In: Flint PW, Francis HW, Haughey BH, et al, eds. Cummings Otolaryngology: Head and Neck Surgery. 7日艾德. Philadelphia, PA: Elsevier; 2021:chap 122.

Faquin WC, Fadda G, Cibas ES. Fine-needle aspiration of the thyroid gland: The 2017 Bethesda System. 见:伦道夫·乔治·华盛顿主编. Surgery of the Thyroid and Parathyroid Glands. 3日艾德. Philadelphia, PA: Elsevier; 2021:chap 11.

Filetti S, Tuttle RM, Leboulleux S, Alexander EK. Nontoxic diffuse goiter, nodular thyroid disorders, and thyroid malignancies. In: Melmed S, Auchus, RJ, Goldfine AB, Koenig RJ, Rosen CJ, eds. Williams Textbook of Endocrinology. 14日艾德. Philadelphia, PA: Elsevier; 2020:chap 14.