Objective: Conventional fine-needle aspiration biopsy (FNAB) for cystic thyroid nodules (CTNs) has a high rate of nondiagnostic and false-negative results. Ultrasound-guided FNAB (UG-FNAB ...

Medically reviewed by Isabel Casimiro, MD, PhD 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 ...