Repeat FNA for small nodules often yields adequate cellular material for a diagnosis. Preferably, the repeat FNA should be done with ultrasound guidance. FNA using ultrasound guidance reduces the ...

Clinical investigation of enlarged, local lymph nodes after surgery for papillary thyroid carcinoma ... collected by fine-needle aspiration (FNA) for cytology. The authors report that increased ...

FNA is preferred over thyroid scan or ultrasonography as the initial diagnostic test for thyroid nodules. However, a previous ultrasound may aid the physician performing the aspiration.

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.

Now, a report by the team in Boston Children's Thyroid Center bolsters those findings. The Center's clinicians have used FNA to evaluate pediatric thyroid nodules for more than a quarter century.