At each visit, the target thyroid nodule was recorded in two dimensions.

Fine needle aspiration biopsy of the thyroid nodule revealed papillary thyroid carcinoma.

Conclusions: Increasing thyroid nodule size impacts cancer risk in a nonlinear fashion.

She had undergone left hemithyroidectomy for a benign thyroid nodule 18 years ago.

Forty-one of the fifty-two patients presented with a single thyroid nodule.