ABSTRACT
Palpable thyroid nodules are fairly common. While many are benign, the clinician faces the challenge of detecting the 4 to 14% of malignant lesions. Fine needle aspiration cytology (FNAC) of thyroid nodules seems to have eclipsed all other techniques for diagnosis of thyroid cancer, but has its limitations when a nodule is inaccessible or in the case of follicular neoplasm. This study from a hospital from Indian west coast shows that vascular flow pattern of extensive peripheral and central flow (Type-3) or a central flow only (Type-4) and a resistive index (RI) of >0.75 on power Doppler sonography shows a healthy sensitivity and excellent specificity for predicting malignancy. The utility becomes even more apparent among follicular neoplasms where FNAC can offer little help in distinguishing malignancy.
How to cite this article
Rao G, Rao S, Varma R, Bhagwat NM, Chadha MD, Joshi AS, Varthakavi PK. Predicting Malignancy in a Solitary Thyroid Nodule: A Prospective Study on the Role of Color Doppler Ultrasonography. Int J Otorhinolaryngol Clin 2014;6(1):9-14.