TG and thyroid nodule: Multivariate regression analysis showed that positive anti-TG antibodies (OR=5.5, p=0.002), radiation exposure (OR=4.7, p=0.013), irregular borders (OR=4.1, p=0.031), taller than wide growth (OR=4, p=0.007), hypoechogenicity (OR=3.7, p=0.019), calcifications (OR=3, p=0.024), and solid consistency (OR=2.7, p=0.043) remain to be associated with increased risk of malignancy among Bethesda III and IV categorized thyroid nodules (Tables 5-6).