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.
Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is used for the cytologic evaluation of lymphoid tissue from patients with (unknown) lymphadenopathy; however, because only a limited ...
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