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Images in a 42-year-old woman who underwent routine check-up. A 6 mm left thyroid nodule with hypoechogenicity, solid, irregular margins, wider-than-tall, and no calcification was found by conventional US and assessed as a benign nodule. A score of 3 was assigned at elastography. The TI-RADS category was assigned as 4. This thyroid nodule was diagnosed as papillary thyroid carcinoma at surgery.
