Thyroid Nodule With Suspicious Ultrasound Features: From Diagnosis to Treatment

The evaluation of thyroid nodules requires a calibrated approach that balances timely cancer detection with the prevention of diagnostic overtreatment. Assessment begins by identifying clinical red flags for malignancy, including a history of childhood head and neck radiation, familial syndromes...

• Evaluation of a thyroid nodule begins with identifying clinical red flags for malignancy, including a history of childhood head and neck radiation, familial syndromes such as multiple endocrine neoplasia type two, rapid nodular growth, hoarseness, compressive symptoms, and cervical lymphadenopathy. Initial laboratory evaluation requires a serum thyroid-stimulating hormone level to determine functional status, followed selectively by free thyroxine, triiodothyronine, thyroid peroxidase antibodies, or serum calcitonin. Serum thyroglobulin should not be measured for primary diagnostic purposes.