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If the nodule has highly suspicious ultrasound features or clinical risk factors, surgical excision should be considered for definitive diagnosis.
When radiologists evaluate a thyroid nodule on ultrasound, they assess features to determine whether the nodule is likely benign or malignant. Understanding these key ultrasound features can help in identifying nodules that may require further investigation.
Sharma et al. 15 found the most suspicious ultrasound features in subcentimetre thyroid nodules to be posterior acoustic shadowing, rim calcifications, entirely solid structure, many diffuse calcifications, and taller-than-wide configuration.
Given findings of hot nodules harboring malignancy, the authors investigated the role of thyroid ultrasound in patients with hyperthyroidism to identify suspicious features concerning for possible malignancies.
• Ultrasound is sensitive in identifying suspicious features, which require aspiration. • Whether nodules require aspiration should be based on sonographic features and clinical findings. • U1–5 classification of sonographic findings can help determine whether aspiration is necessary. Introduction.
A recent, retrospective case-control study of patients who underwent thyroid US reported three ultrasound nodule characteristics (microcalcifications, size >2 cm, and an entirely solid composition) as the only findings associated with the risk of thyroid cancer .
piration based on ultrasound characteristics and size. Nodules with suspicious features and soli. hypoechoic nodules 1 cm or larger require aspiration. The Bethesda Syste. (categories 1...
High-resolution ultrasonography (US) is commonly used to evaluate the thyroid gland, but US is frequently misperceived as unhelpful for identifying features that distinguish benign from malignant nodules. Microcalcifications are one of the most specific US findings of a thyroid malignancy.
Main messages: • Ultrasound is sensitive in identifying suspicious features, which require aspiration. • Whether nodules require aspiration should be based on sonographic features and clinical findings. • U1-5 classification of sonographic findings can help determine whether aspiration is necessary.
Imaging, especially with the use of high resolution ultrasound, helps to differentiate a malignant nodule from a more common benign thyroid nodule and identify a malignant nodule against a background nodular goitre, the incidence of which varies between 1% and 3% [16].