The İmportance of FNAB İn the dİagnosıs of thyroİd nodules detected İn a patİent wıth İonİzİng radİatİon hİstory

Thyroid nodule is a common endocrine pathology. Malignancy criteria in USG are: microcalcification, predominantly solid and hypoechoic internal structure, irregular contour and antero-posterior diameter being more prominent than transverse. Lymphadenopathy and adjacent organ invasion are highly specific for malignancy, but the most specific USG finding is intranodular microcalcification. In suspicious clinical conditions, regardless of thyroid nodule size, FNAB must be performed to patients with radiotherapy history in the neck region.