Assessment of Malignant Risk Potential of Thyroid Nodules using Ultrasound TIRADS Criteria with Correlation by FNAC/Excision Biopsy

Authors

Dr. Soujanya Gera , Dr. Venkateswara Rao. S , Dr Jones, Dr. Srinidhi , Dr. Arun Paul Author

Keywords:

Thyroid Nodule, TIRADS, Ultrasound, FNAC, Malignancy Risk, Thyroid Cancer

Abstract

Thyroid nodules are highly prevalent in the adult population, with a risk of
malignancy in a subset of cases. Ultrasound-based Thyroid Imaging Reporting and
Data System (TIRADS) classification enables risk stratification and guides decisions
on whether to perform FNAC. This study evaluates ultrasound findings in thyroid
nodules and correlates them with cytopathological results to assess malignancy risk.
Nodules in TIRADS categories 4 and 5 showed malignancy, while category 3 had no
malignant cases. Certain sonographic features (irregular/lobulated margins, marked
hypoechogenicity, microcalcification, taller-than-wide shape) showed high
specificity for malignancy. The study concludes that TIRADS is a valuable,
noninvasive method for thyroid nodule assessment.