Update on the Evaluation of Thyroid Nodules.

Area of Science:

• Endocrinology
• Oncology
• Radiology

Background:

• Thyroid nodules (TN) are common, with a 7%-15% malignancy risk.
• Increased imaging leads to more incidental TN diagnoses.
• Initial evaluation involves thyroid function, risk factors, and imaging.

Purpose of the Study:

• To review the epidemiology, diagnosis, and management of thyroid nodules.
• To highlight recent advances in TN assessment and treatment.
• To provide guidance on individualized patient management.

Main Methods:

• Literature search of PubMed and Medline for TN studies in the last 5 years.
• Review of diagnostic modalities including ultrasound, biopsy, and scintigraphy.
• Analysis of risk stratification systems and molecular testing advancements.

Main Results:

• Ultrasound is the gold standard for TN morphology; biopsy confirms benignancy.
• Risk stratification systems reduce unnecessary biopsies.
• Molecular testing decreases diagnostic surgeries for indeterminate cytology.
• Scintigraphy is key for hyperfunctioning nodules.
• Active surveillance is viable for micropapillary thyroid cancer.

Conclusions:

• Most TN are benign and manageable with monitoring.
• Biopsy and imaging frequency should be risk-stratified.
• Treatment for TN requires individualized approaches.
• Active surveillance is recommended for specific papillary microcarcinomas.