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Taller-than-wide Thyroid Nodules With Microcalcifications Are at High Risk of Malignancy
Konstantinos D Papapostolou1, Catherine C Evangelopoulou1, Ioannis A Ioannidis1
1Medical Diagnosis Group, Athens, Greece.
Background/Aim:
Previous studies have shown that there may be a diversity in the ultrasonographic (US) features discriminating a malignant from a benign thyroid nodule. We determined the reliability of the specific nodule shape in combination with other US features in predicting thyroid carcinomas.
Patients And Methods:
This was a retrospective single-center study investigating the association of the morphological characteristics of nodular goiters from preoperative US and color Doppler images with malignancy based on pathology.
Results:
We evaluated 254 thyroid nodules (malignant, n=131) from 205 patients. Multivariable logistic regression analysis showed that taller-than-wide shape [odds ratio (OR)=25.3, 95% confidence interval (CI)=5.4-118.9; p<0.001], microcalcifications (OR=4.9, 95% CI=2.5-9.5; p<0.001), hypoechogenicity (OR=4.5; 95% CI=2-10.3; p<0.001) and size (OR=0.93; 95% CI=0.89-0.98; p=0.002) were independently associated with thyroid nodule malignancy. Additionally, we found a strong negative correlation between size and taller-than-wide shape of a thyroid nodule (r=-0.41, p<0.001).
Conclusion:
Among the important indicators of thyroid malignancy, taller-than-wide nodules with microcalcifications are most likely to be malignant.
