Medically reviewed by Do-Eun Lee, MD A fine-needle aspiration (FNA) is a procedure that's used to sample cells from the thyroid gland for microscopic examination. This test is used in the ...

Role of FNA biopsy. Depending on the nature of the thyroid nodule, FNA biopsy can function as a diagnostic test or a triage tool.1, 2, 3 As a diagnostic test, FNA biopsy can be used to diagnose ...

A thyroid biopsy is a medical procedure used to diagnose problems with the thyroid gland. The thyroid is a butterfly-shaped gland in the neck that makes hormones. A fine needle aspiration (thyroid ...

Fine-needle aspiration biopsy of the thyroid nodule is a procedure in which a small sample of cells is obtained from a thyroid nodule with the aid of a thin needle under ultrasound guidance.

Fine needle aspiration is a type of biopsy procedure. ... thyroid gland; lymph nodes in the neck, groin, or armpit; Those types of fine needle aspirations are performed through the skin.

Source Reference: Abuchaibe C, et al "Repeat fine needle aspiration biopsy for Bethesda III thyroid nodules: A systematic review and meta-analysis" AACE 2017; Abstract 1039.

In a series of thyroid nodules from adults in Ireland, the false-negative rate of an initial benign thyroid fine-needle aspiration was low, around 1%, suggesting that routine second fine-needle ...

Before a thyroid nodule biopsy, a doctor will explain the possible risks so a person can make an informed decision about having one. While a person may feel discomfort during the procedure, it is ...

Repeat fine-needle aspiration can diagnose more than half of thyroid nodules initially classified as indeterminate, but diagnosis rates are less than 50% with nodules smaller than 0.5 cm or larger ...

Thyroid nodules are lumps (growths) made up of abnormal cell clusters that develop in the thyroid gland, located at the base of your neck. They can be solid, fluid-filled, or a mixture of both.